JesuityoudaoicibaDictYouDict[Jesuit 词源字典]
1540s, from Modern Latin Jesuita, member of the Society of Jesus, founded 1533 by Ignatius Loyola to combat Protestantism. Their enemies (in both Catholic and Protestant lands) accused them of belief that ends justify means, hence the sense "a dissembling person" (1630s), and jesuitical "deceitful" (1610s).[Jesuit etymology, Jesuit origin, 英语词源]