lībrārius, a, um, adj. libra. Of or containing a pound, of a pound weight (post-Aug.): frusta, Col. 12, 53, 4: as, Gell. 20, 1, 31.

— Subst. lībrārius, ii, m., a weight, the sixteenth part of a modius, = sextarius: sextarius aequus aequo cum librario siet, sexdecimque librarii in modio sient, Plebisc. ap. Paul. ex Fest. p. 246 Mull.

— lībrāria, ae, f., she that weighed out the wool to the female slaves, a forewoman, head-spinner, called also lanipendia, Juv. 6, 475 (by others referred to 2. librarius); Inscr. Orell. 4212.