Valor

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Middle English (denoting worth derived from personal qualities or rank): via Old French from late Latin valor, from valere ‘be strong’.

wiktionary

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From Middle English valour, from Anglo-Norman valour, from Latin valor. Compare Spanish valor and valer.

etymonline

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valor (n.)

c. 1300, "value, worth," from Old French valor, valour "valor, moral worth, merit, courage, virtue" (12c.), from Late Latin valorem (nominative valor) "value, worth" (in Medieval Latin "strength, valor"), from stem of Latin valere "be strong, be worth" (from PIE root *wal- "to be strong"). The meaning "courage" is first recorded 1580s, from Italian valore, from the same Late Latin word. (The Middle English word also had a sense of "worth or worthiness in respect of manly qualities").