Where does “mightie” come from?

mightie (Middle English) comes from Old English mihtiġ, from Proto-West Germanic mahtīg, 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 “mightie”, step by step

mightie traces back through 3 separate lines of ancestry.

via Old English mihtiġ

StepLanguageWordMeaning
1Old Englishmihtiġpowerful, mighty, able
2Proto-West Germanicmahtīgmighty, powerful
3Proto-Germanicmahtīgazmighty
4Proto-Germanicmahtizpower, ability; strength, force
5Proto-Germanicmahtuzmight, power
6Proto-Indo-Europeanmógʰtis—
7Proto-Indo-Europeanmeǵʰ-to be able

via Old English mæhtiġ

StepLanguageWordMeaning
1Old Englishmæhtiġmighty

via Old English meahtiġ

StepLanguageWordMeaning
1Old Englishmeahtiġ—
Every word from Proto-Indo-European meǵʰ- →Every word from Proto-Indo-European mógʰtis →Every word from Proto-Germanic mahtuz →