Viable
来自Big Physics
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early 19th century: from French, from vie ‘life’, from Latin vita .
wiktionary
From French, from Medieval Latin *vītābilis(“capable of life”), from Latin vīta(“life”); see vital.
etymonline
viable (adj.)
1828, from French viable "capable of life" (1530s), from vie "life" (from Latin vita "life," from PIE root *gwei- "to live") + -able. Originally of newborn infants; generalized sense is first recorded 1848. Related: Viably.
