Magnanimous

google

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mid 16th century: from Latin magnanimus (from magnus ‘great’ + animus ‘soul’) + -ous.

wiktionary

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From Latin magnanimus, from magnus(“great”) + animus(“soul, mind”). Displaced native Old English miċelmōd(literally “big-minded”).

etymonline

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magnanimous (adj.)

1580s, "nobly brave or valiant," from magnanimity + -ous, or else from Latin magnanimus "highminded," literally "great-souled," from magnus "great" (from PIE root *meg- "great") + animus "mind, soul, spirit" (see animus). From 1590s as "elevated in soul or sentiment, superior to petty resentments." Related: Magnanimously.