dere 
Tbcy drejji; him up to the -li'> <, and he na dere suflrd. 
Kiiui Atimunder, p. 189. 
Here fadir, lyff is full wetc, 
The dredt- of dede dose all my dere. 
\'i'k 1'laif*, p. 65. 
, a. and . A Middle English form of 
rfrrtr. 
dere :i t, n. A Middle English form of deer. 
derecho (Sp. pron. da-ra'cho), n. [Sp., right, 
justice, < ML. dereftitm, right, justice: see direct 
and limit.'] In Mexican ma &M*feft /'/': () 
Right; justice; just claim, () ;j/. Imposts; 
taxes; customs-duties Derecho comun, common 
law. 
dereignmentt, Same as deraignmentl. 
dereinet, ' '. See deraignl. 
derelict (dcr'e-likt), n. and it. [= Pg. derelicto 
= It. del-ditto, < L. derelic.tus, pp. of derelin- 
qncrc, forsake utterly, < de- + relintjitere, for- 
sake, abandon: seeraicf, relinquent, relinquish.] 
1. a. 1. Left; abandoned by the owner or guar- 
dian. [Now rare except in law.] 
Taking out a patent In Charles the Second's time for 
derelict lands. Sir P. Pelt, Letters, To A. Wood, I. 811. 
Tile affections which these exposed or derelict children 
bear to their mothers have no grounds of nature or as- 
siduity, but civility and opinion. 
Jer. Taylor, Works (ed. 1835), I. 40. 
2. Unfaithful; neglectful of requirement or re- 
sponsibility: as, derelict in duty. 
The vacant, unoccupied, and derelict minds of his 
friends. Burke, American Taxation. 
It was generally admitted that Mr. Grant was hopelessly 
derelict, and neglectful of his social duties. 
J. Hawthorne, Dust, p. 108. 
II. n. 1. That which is abandoned; in late, 
an article of goods or any commodity thrown 
away, relinquished, or abandoned by the own- 
er; specifically, a vessel abandoned at sea. 
When I am a little disposed to a gay turn of thinking, 
I consider, as 1 was a derelict from my cradle, I have the 
honour of a lawful claim to the best protection In Europe. 
Savage, Wanderer, v., note. 
The crown [of Jerusalem] became a derelict ; the title 
was borne after Conrad by his half-brother Henry, the 
Bon of Isabella of England; and subsequently bya number 
of ruling houses. 
Stuubs, Medieval and .Modern Hist., p. 176. 
The cruiser Atlanta towed into the Capes of Delaware 
a dangerous derelict which had been drifting about off the 
coast for weeks New York Tribune, Nov. 20, 1887. 
2. Land left dry by a change of the water-line, 
dereliction (der-e-lik'shon), n. [= Pg. dere- 
lic^So, < L. derelictio(n-), an abandoning, < dere- 
lictKS, pp. of derelinquere, abandon: see dere- 
lict.] 1. The act of leaving with an intention 
not to reclaim or resume ; an utter forsaking ; 
abandonment. [Now rare except in law.] 
When the man repents, he is absolved before God, be- 
fore the sentence of the church, upon his contrition and 
dereliction only. Jer. Taylor, Holy Dying, v. 4. 
2. The state of being forsaken or abandoned. 
Hadst thou not been thus forsaken, we had perished ; 
thy dereliction is our safety. Bp. Hall. 
8. The gaining of land from the water by a 
change of the water-line. 4. The land so 
gained. 5. Unfaithfulness or remissness ; neg- 
lect: as, a dereliction of duty. 
The pretence was the Persian war, which Argos de- 
clined. This was called a base dereliction, and excited, by 
the help of Spartan emissaries, hatred nnd contempt. 
J. Adams, Works, IV. 611. 
= Syn. 1. Desertion, relinquishment. 8. Failure, unfaith- 
fulness. 
dereligionize (de-re-lij'qu-Iz), v. t.; pret. and pp. 
drrelitiioniznl, ppr. dereligionizing. [<de-priv. 
+ reli<jiiii~t'.] To make irreligious ; oppose 
or discourage religion in or among. [Rare.] 
He would dereligionize men beyond all others. 
De Quincey. 
derelingt, An obsolete form of darling. 
dereynet, '. t. A variant form of deraignl. 
derft, a. [ME., also durf, prob. (the AS. 'deorf, 
ONorth. "dearf, not being authenticated) < Icel. 
iljnrfr = Sw. djerf = Dan. dierv, bold, daring, 
= (with additional suffix) OS. derbhi = OPries. 
<lirre, bold, fierce.] Bold ; brave ; strong ; 
mighty; terrible. 
" Do way," quoth that derf mon, " my dere, that speche. 
For that dnrst I nut do, lest I denayed were." 
Sir Gairaime and the Green Knight (E. E. T. S.), L 1492. 
Doughty "f dedls, derfe of his hondes. 
None wigliter in werre, ne of wille bettur. 
Drxtntction o/7Voi/(E. E. T. S.), ]. 8816. 
derflyt, nrfr. [ME., also derfliehc, derflike, etc. 
(= Icel. djarttiya); < derf + -ty2.] Boldly; 
bravely; sorely; greatly. 
t <l;uv loke m> man in the face, 
Derfdy for dole why ne were I di'de. 
York I'layt, p. 107. 
LB61 
derham (der'am), n. [Also dirliem ; Ar. derham, 
dirhem, Turk, dirliem, I'ers. ilirham, diram, < Gr. 
tipaxp'/, a drachma : see drachma, drachm, dram.] 
An Arabian weight and silver coin, intended ori- 
ginally to be two thirds of an Attic drachma 
(44.4 grains troy) ; a dram. Its value was fixed, not 
by reference to a prototype, luit by the rule that ^ part 
of a derham should weigh as much as 70 average grains of 
mustard-seed. There was a difference between the mone- 
tary and pouderal (Arabic ki-il) derham. The former, by 
Obverse. Reverse. 
Derham of Haroun-M-Raschid. struck in A, n. 177 ( A. D. 795), 
in the British Museum. (Size of the original.) 
weighings of numerous early coins, has been found equal 
to 43.7 grains troy, making the value of the coin about 9 
United States cents ; while the latter is said to be heavier 
in the ratio of 10 to 9, so that It would lie 48 grains. This 
is still approximately the mags of the derham (weight) in 
most localities ; though in some places it sinks nearly to 46 
and in others rises almost to 60 grains, and in Abyssinia is 
even said to lie only 40 or 41 grains. There was in early 
times a derham of half the usual weight, and two units of 
this name now employed in Persia are equal to nearly 150 
and 300 grains respectively. The Morocco coin, the der- 
ham, is reckoned equivalent to 7} United States cents. 
deric (der'ik), a. [< Gr. if pot, skin, + -ic.] In 
embryoL, of or pertaining to the ectoderm, or 
outer germ-layer : the opposite of enteric. 
The Fungi which spread In the deric tissues of the higher 
animals. De Bary, Fungi (trans.), p. 360. 
deride (de-rid'), r. t. ; pret. and pp. derided, ppr. 
deriding. [= OF. derider, derire, F. dial, derire 
= It. deridere, diridere, < L. deridere, mock, laugh 
at, < de- + ridere, laugh : see ridicule, risicle. Cf. 
arride.] To laugh at in contempt ; turn to ridi- 
cule or make sport of ; mock ; treat with scorn 
by laughter. 
The Pharisees also . . . derided him. Luke xvi. 14. 
Men have rather sought by wit to deride and traduce 
much of that which is good in professions, than with judg- 
ment to discover and sever that which is corrupt. 
Bacon, Advancement of Learning, il. 281. 
=8yn. Ridicule, etc. (see taunt), banter, rally, jeer, gibe, 
scout, scoff at, insult. 
derider (df-ri'der), . One who derides; a 
mocker; a scoffer. 
Execrable blasphemies, and like contempts offered by 
df riders of religion. Hooker, Eccles. Polity. 
deridingly (de-ri'ding-li), adv. By way of de- 
rision or mociery. 
His parasite was wont deridingly to advise him. 
/;/' Reynolds, On the Passions, xxxvii. 
derisible (de-riz'i-bl), a. [= It. derisibile, < L. 
as if "deristbilis, < deridere, pp. derisus, laugh 
at, deride: see deride.] Subject to derision; 
worthy of derision. 
In every point of intellectual character I was his hope- 
less and deritible Inferior. 
R. L. Stevenson, The Dynamiter, p. 71. 
derision (de-rizh'on), n. [= F. derision = Pr. 
derrizio = It. dei'isione, dirieione, < LL. deri- 
sio(ti-), < L. deridere, pp. derisus, laugh at, de- 
ride: see deride.] 1. The act of deriding; sub- 
jection to ridicule or mockery ; contempt mani- 
fested by laughter ; scorn. 
He that sitteth In the heavens shall laugh ; the Lord 
shall have them in derition. I 1 -, ii. 4. 
British policy is brought intorfrrui'ou in those nations 
that a while ago trembled at the power of our arms. 
Burte , Present Discontents. 
2. An object of derision or contempt; a laugh- 
ing-stock. 
I was a derision to all my people. Lam. ill. 14. 
= 8yn. 1. Ridicule, mockery, gibes, scoffing, taunts, in- 
sults. 
derisionary (de-rizh'on-a-ri), a. [< derision + 
-flry 1 .] Derisive. [Bare.] 
There was a club that ate a calf's head on January 30, 
in ridicule of the commemoration of Charles I.'s death. 
This is spoken of as "that deruionary festival." 
Tom Brown, Works, II. 215. 
derisive (de-ri'siv), a. [= OF. derisif= It. de- 
risiro, < L. as if 'dentfmt, < derisus, pp. of de- 
riihrc, laugh at, deride : see deride.] Express- 
ing or characterized by derision; mocking; ridi- 
culing. 
His [Christ's] head harrowed with the thorns, and his 
derifive purple stained, yea drenched, witli Mood. 
By. Gauden, On the sacrament, p. 98. 
derivation 
Meantime, o'er all the dmnc they quaff, they feast, 
Derisive taunts were spread from guest to guest, 
Ami each in Jovial moud his mate addrcst. 
Pope, Odyssey, It. 
derisively (de-ri'siv-li), adv. With derision or 
mockery. 
The Persians . . . (were] thence called Mauussnl deri- 
sively by other ethnicks. 
Sir T. Herbert, Travels In Africa, p. 248. 
derisiveness (de-ri'siv-nes), H. The state of 
tiring derisive. ' Imji. Diet. 
derisory (de-ri'so-ri), a. [= P. derisoire = Pr. 
derisort = It. dertsorio, < LL. derisorius, serving 
for laughter, < L. deridere, pp. derisus, deride : 
see deride.] Characterized by derision ; mock- 
ing; ridiculing. 
The comlck or dtritory manner Is further still from 
making shew of method. 
Sha/teibury, Advice to an Author, 11. f 2. 
derivability (le-ri-va-bil'i-ti). . [< derivable : 
see -bility.] The character of being derivable. 
A derirabilily of the one from the other. 
Amer. Jour. Sci., 3d ser., XXXII. 360. 
derivable (de-ri'va-bl), a. [= F. derivable = 
Sp. derivable'; as derire + -able.] Capable of 
being derived, received, or obtained, (a) obtain- 
able, as from a source : as, income is derivable from land, 
money, or stock ; an estate derivable from an ancestor. 
He here confounds the pleasure derivable from sweet 
sounds with the capacity fur creating them. 
Pot, Tales, I. 360. 
Having disregarded the warning derivable from common 
experience, he was answerable for the consequences. 
//. Spencer, Man vs. State, p. 47. 
(6) Traceable, as to a source ; obtainable by derivation : 
as, a word derivable from the Greek, (c) Deducible, as 
from premises. 
The second sort of arguments . . . are derivable from 
some of these heads. WiUcint. 
derivably (de-ri'va-bli), adv. By derivation. 
derivant (der'i-vant), n. [< L. deriran(t-)s, 
ppr. of derivare, derive: see derice.] In math., 
a homogeneous and isobaric function off,- which 
is a covariant of/, where /,- denotes 
derivate (<ler'i-vat), a. and n. [= F. derirt = 
Sp. Pg. derivado = It. derivato (= G. Dan. Sw. 
derivatum, Sw. also derivat, n.), < L. deriratttx 
(neut. derivatum, in NL. as a noun), pp. of de- 
rivare, derive: see the verb.] I. a. Derived. 
[Rare.] 
Putting trust in Him 
From whom the rights of kings are derivate, 
In its own blood to trample treason out. 
Sir H. Taylor, Edwin the Fair, i. 7. 
II. . A word derived from another; a de- 
rivative. [Rare.] 
derivation (der-i-va'shon), H. [= OF. deritai- 
son, derifoison, dirivesdn, F. derivation = Sp. 
derivaeion = Pg. derivacao = It. derivazione = 
G. Dan. Sw. derivation, < L. <lerivatio(n-), deri- 
vation, < derivare, pp. derivat us, derive: see de- 
rive.] 1. A drawing from or turning aside, as 
a stream of water or other fluid from a nat- 
ural course or channel; a stream so diverted. 
[Obsolete or archaic.] 
These issues and derivatnms being once made, and sup- 
plied with new waters pushing them forwards, would con- 
tinue their course till they arrived at the sea, just as other 
rivers do. T. Burnet, Theory of the Earth. 
An artificial derivation of that river. Gibbon. 
Specifically (a) In med.. revulsion, or the drawing away 
of the fluids of an inflamed part, by applying blisters, ete., 
over it or at a distance from it. (6) In ttleg., a diversion 
of the electric current. 
In telegraphy, derivations generally arise from the wire 
touching another conductor. 
R. S. Culley, Pract. Teleg., p. 43. 
2. The act or fact of deriving, drawing, or re- 
ceiving from a source: as, the derivation of be- 
ing ; the derivation of an estate from ancestors, 
or of profits from capital. 
My derivation was from ancestors 
Who stood equivalent with mighty kings. 
Shot., Pericles, v. I. 
shrubs and flowers, Indigenous or of distant derivation. 
P. Robnuon, Under the Sun, p. 17. 
3. In pJiilol., the drawing or tracing of a word 
in its development or formation from its more 
original root or stem ; a statement of the origin 
or formative history of a word. See etymology. 
Derivation, in Its broadest sense, includes all processes 
words are formed from 
G. P. Xareh, Lects. on 
by which new words are formed from given root*. 
on Eng. Lang., p. 193. 
4. In ninth. : (a) The operation of finding the 
derivative, or differential coefficient ; differen- 
tiation. (6) The operation of passing from any 
point on a cubic curve to that point at which the 
