lībrĭpens — Lewis & Short
lībrĭpens, pendis, m.libra-pendo.
I One who weighed or counted out the pay to soldiers, a paymaster, Plin. 33, 3, 13, § 43: impubes libripens esse non potest, Ael. ap. Prisc. 892 P.—
II One who held the balance, as if to weigh out money, at nominal sales:
adhibitis non minus quam V. testibus civibus Romanis puberibus, item libripende,Gai. Inst. 1, § 113; Ulp. Fragm. 19, 3; cf. Plin. 33, 3, 13, § 43.