A lot vs. Alot: 9 Grammatical Pitfalls
late 15c., "blown over, passed away," past participle adjective from verb overblow "to blow over the top of," of a storm, "to abate, pass on" (late 14c.), from over- + blow (v.). Meaning "inflated, puffed up" (with vanity, etc.) is from 1864.