DUPONDIUS, in antiquity, a weight of two
pounds, or money of the value of two asses. See AS.
As the as at first weighed just a pondus or libra, the
dupondius then weighed two; and hence the name.
And though the weight of the as was afterwards
diminished, and of consequence that of the dupondius
also, yet they still retained the denomination. See
POUND and LIBRA.