A lot vs. Alot: 9 Grammatical Pitfalls
1540s, from be- "thoroughly" + Middle English rate "to scold" (late 14c.), from Old French reter "accuse, blame," from Latin reputare (see reputation). "Obsolete except in U.S." [OED 1st ed.], but it seems to have revived in Britain 20c. Related: Berated; berating.