A lot vs. Alot: 9 Grammatical Pitfalls
Old English untreowe "unfaithful" (of persons), from un- (1) "not" + true (adj.). Cf. Middle Dutch ongetrouwe, Middle Low German ungetruwe, Old High German ungitriuwi, Old Norse utryggr. Meaning "contrary to facts" is attested from c.1300.