Might, n.
Etymology: [AS. meaht, miht, from the root of magan to be able, E. may; akin to D. magt, OS. maht, G. macht, Icel. mattr, Goth. mahts. May, v.]
Force or power of any kind, whether of body or mind; energy or intensity of purpose, feeling, or action; means or resources to effect an object; strength; force; power; ability; capacity. What so strong, But wanting rest, will also want of might Spenser. Thou shalt love the Lord thy God with all thine heart, and with all thy soul, and with all thy might. Deut. vi. 5. With might and main. See under 2d Main.
1 other Webster entry under this spelling
Might
imp. of May. Etym: [AS. meahte, mihte.]
Shades of meaning
Fernald has no entry of its own for might; he lists it under power.
He lists it without comment; the entries above explain its neighbors.