antigenus

1 antigenus , earlier born. †actigeni [EE 345. 52: ~i], †prior geni [? l. prius geniti] GlC A 649.

2 antigenus , of a contrary kind. subdita primorum generum sibi symmetra non sunt, / nec simili antigena sub ratione cadunt J. Sal. Enth. Phil. 960.