might

From Middle English maught, might, miȝt, myght, from Old English maht, meaht, meht, mieht, miht, mæht (“ability, power; strength; virtue”), from Proto-West Germanic *mahti, from Proto-Germanic *mahtiz (“ability, power; force, strength”), from Proto-Indo-European *(me)mógʰe (“to be able to, to have power”), from *megʰ- (“to be able”), corresponding to Germanic *maganą (“to be able, may”) + *-þiz. Equivalent to may + -th.

Cognates

Cognate with Scots micht (“might”), Yola mought (“might”), Dutch macht (“might, power”), German Macht (“might, power”), Luxembourgish Muecht (“authority, might, power”), Yiddish מאַכט (makht, “might, power”), Faroese and Icelandic máttur (“might, strength”), Danish magt (“power; force”), Norwegian Bokmål makt (“power”), Norwegian Nynorsk and Swedish makt (“power; force”), mått (“might, power”), Gothic 𐌼𐌰𐌷𐍄𐍃 (mahts, “ability, might, power”), and further to Irish smacht (“ordinance, regulation, rule; dominion, sway; control, discipline, restraint; fine, penalty”), Greek μάγος (mágos, “magician; sorcerer, wizard”), Lithuanian mėgti (“to like”), Belarusian моц (moc, “might, power”), Bulgarian мощ (mošt, “might, power”), Czech and Polish moc (“might, power”), Macedonian моќ (moḱ, “might, power”), Russian мочь (močʹ, “power, might”) and мощь (moščʹ, “force, strength”), Serbo-Croatian мо̑ћ, mȏć (“power; strength; potency; authority”), Slovene moč (“power; strength”), Ukrainian міч (mič) and міць (micʹ, “might, power”), Armenian մոգ (mog, “magus; fire-worshiper, Zoroastrian; astrologer; diviner, enchanter, sorcerer, wizard”), Persian مغ (moġ, “magus”), Sanskrit मघ (magha, “power, wealth; bounty, gift, reward”). See more at may.

From Old English meahte and mihte, inflections of magan, whence English may.