Where does “almighty” come from?

almighty (Middle English) comes from Old English ælmihtiġ, from Proto-Germanic alamahtīgaz, from Proto-Germanic mahtīgaz, from Proto-Germanic mahtiz, from Proto-Germanic mahtuz, from Proto-Indo-European mógʰtis, from Proto-Indo-European meǵʰ- — to be able.

Ancestry of “almighty”, step by step

StepLanguageWordMeaning
1Old Englishælmihtiġall-powerful
2Proto-Germanicalamahtīgazalmighty
3Proto-Germanicmahtīgazmighty
4Proto-Germanicmahtizpower, ability; strength, force
5Proto-Germanicmahtuzmight, power
6Proto-Indo-Europeanmógʰtis—
7Proto-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 →