transfŭgĭum — Lewis & Short
transfŭgĭum, ii, n.transfugio.
I Lit., a going over to the enemy, desertion (very rare):
ut transfugia impeditiora essent,Liv. 22, 43, 5:
crebra, ut in civili bello,Tac. H. 2, 34; 4, 70; id. A. 2, 46. —
II Transf.:
sacrarii,a migrating to Rome, Prud. adv. Symm. 2, 503:
ad Christum de circumcisione,conversion, Sid. Ep. 8, 13.