Where does “adversely” come from?

Adversely comes from Middle English -ly added to Latin adversus, meaning "turned against," from Latin advertere, derived from Latin ad- meaning "to" and the root ad from Proto-Indo-European ád.

adversely (English): In an adverse manner

Definitions

  1. In an adverse manner

Ancestry of “adversely”, step by step

StepLanguageWordMeaning
1EnglishadverseUnfavorable; antagonistic in purpose or effect;...
2Old Frenchavers
3Latinadversusset opposite, adverse, having been set against;...
4Latinadvertōto turn to or towards
5Latinad-to; usually prefixed to verbs, in which cases it...
6Latinīn-un-, non-, not
7Latinînin, at, on, upon, from (space)
8Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
9Proto-Italicenin
10Proto-Indo-Europeanh₁énin
Every word from Proto-Indo-European h₁én
adversely — Etymology, Origin & Word History | Etymology Explorer