Lewis & Short

in-fervĕfăcĭo, fēci, factum, 3, v. a. (pass. fīo, factus, fĭēri), to cause to boil in any thing; or simply to cause to boil, to boil: infervefacito paulisper, Cato, R. R. 156, 7: liquatum acetum, Col. 12, 17, 2: cum infervefiunt, Scrib. Comp. 271: omnia infervefacta, Col. 9, 13, 5.