A lot vs. Alot: 9 Grammatical Pitfalls
1590s, "that revolts, given to revolt, rebellious," present participle adjective from revolt (v.). Sense of "repulsive" is from 1806. Related: Revoltingly.
1550s, from Middle French révolte (c.1500), back formation from revolter (see revolt (v.)), or else from Italian rivolta.