Where does “mightly” come from?

mightly (English) comes from Middle English myghtely, from Old English mihtlīċe, from Old English miht, from Old English mieht, from Old English meaht, from Old English maht, from Germanic *mahti, from Proto-Germanic mahtiz — to be able.

mightly (English): Mighty; competent; capable; strong; powerful;...

Definitions

  1. Mighty; competent; capable; strong; powerful;...

Ancestry of “mightly”, step by step

StepLanguageWordMeaning
1Middle Englishmyghtely—
2Old Englishmihtlīċemightily, powerfully, in power; with might
3Old Englishmihtpower, ability; strength, power
4Old Englishmieht—
5Old EnglishmeahtAlternative form of miht; second-person singular...
6Old Englishmaht—
7Germanic*mahti—
8Proto-Germanicmahtizpower, ability; strength, force
9Proto-Germanicmahtuzmight, power
10Proto-Indo-Europeanmógʰtis—
11Proto-Indo-Europeanmeǵʰ-to be able
Every word from Proto-Indo-European meǵʰ- →Every word from Proto-Indo-European mógʰtis →Every word from Proto-Germanic mahtuz →