[ 52 + ] 
fies two and a half of any fubdantive to which It re- 
fers. In money matters its fubftantive is either As> 
or pondus ; and Seftertius As^ is two Ajjes and a 
half; Seftertium pondus, two pondera and a half, 
or 250 Denarii. (2). 
^When the Denarius paded for ten AJJes^ the Sef- 
tercc of 2 1 AjJes was a quarter of it; and the Ro- 
mans continued to keep their accounts in thefe Sef- 
terces long after the Denarius pafled for fixteen Ades ; 
til, growing rich, they found it more convenient to 
reckon by quarters of the Denarius, which they 
called Nummi, and ufed the words Nummus and 
Sedertius, indifferently as fynonymous terms, and 
fometimes both together, as Sedertius nummus ; in 
which cafe, the word Sedertius, having lod its ori- 
ginal fignification, was ufed as a fubdantive ; for 
Sedertius nummus was not two Nummi and a half, 
but a fingle Nummus of four Ajfes. 
They called any fum under 2000 Sederces fo 
many Seftertii, in the mafculine gender; 2000 Sef- 
terces they called duo or bina Sedertia, in the neuter ; 
fo many quarters making 500 Denarii, which was 
twice the Sedertium ; and they faid dena, vicena, 
6cc. Sedertia, till the fum amounted to a thoufand 
Sedertia, which was a million of Sederces. But, to 
avoid ambiguity, they did not ufe the neuter Seder- 
tium in the fingular number, when the whole dim 
amounted to no more than 1000 Sederces, or one 
Sedertium. 
They called a million of Sederces Decies num- 
mum, or Decies Sedertium, for Decies centena mil- 
(2) See Gronoviiis, Dc pecunia vetere, L. I. c. 4. 
lia 
2 
