The Collaborative International Dictionary of English v.0.48:
Brith \Brith\ n. 1. the Jewish rite of circumcision. Syn: Berith, Bris. [WordNet 1.5]WordNet (r) 3.0 (2006):
Brith n 1: the Jewish rite of circumcision performed on a male child on the eighth day of his life [syn: Berith, Berit, Brith, Bris, Briss]