illegal (adj.)Related entries & more
1630s, from French illégal (14c.) or directly from Medieval Latin illegalis, from assimilated form of in- "not, opposite of" (see in- (1)) + Latin legalis (see legal). Term illegal immigrant first recorded 1892 in American English (illegal immigration is from 1887); used in British English in 1940s in reference to the Jewish movement to Palestine.
illegality (n.)Related entries & more
unlawful (adj.)Related entries & more
wetback (n.)Related entries & more
lawless (adj.)Related entries & more
bull-baiting (n.)Related entries & more
tortious (adj.)Related entries & more
license (v.)Related entries & more
kickback (n.)Related entries & more
also kick-back, "mechanical reaction in an engine," from 1905 in various mechanical senses, from the verbal phrase (1895); see kick (v.) + back (adv.). By 1926 the verbal phrase was being used in a slang sense of "be forced to return pelf, pay back to victims," which was extended to illegal partial give-backs of government-set wages that were extorted from workers by employers. Hence the noun in the sense of "illegal or improper payment" (1932). The verbal phrase in the sense "make oneself comfortable, prepare to relax" is from 1975.