Fortitude
来自Big Physics
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Middle English: via French from Latin fortitudo, from fortis ‘strong’.
wiktionary
From Middle English fortitude, from Old French, from Latin fortitūdō(“bravery, strength”), from fortis(“brave, strong”).
etymonline
fortitude (n.)
late 14c., "moral strength (as a cardinal virtue); courage," from Latin fortitudo "strength, force, firmness, manliness," from fortis "strong, brave" (see fort). From early 15c. as "physical strength."
