libra arsa (lI-br[schwa] ahr-s[schwa]), n. [Law Latin] Hist. A pound melted to test its purity.
libra numerata (lI-br[schwa] n[y]oo-m[schwa]-ray-t[schwa]), n. [Law Latin] Hist. A pound of money that has been counted.
libra pensa (lI-br[schwa] pen-s[schwa]), n. [Law Latin] Hist. A pound of money by weight.