Tension
来自Big Physics
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mid 16th century (as a medical term denoting a condition or feeling of being physically stretched or strained): from French, or from Latin tensio(n- ), from tendere ‘stretch’.
wiktionary
Borrowed from Middle French tension, from Latin tensiō, tensiōnem.
etymonline
tension (n.)
1530s, "a stretched condition," from French tension (16c.) or directly from Latin tensionem (nominative tensio) "a stretching" (in Medieval Latin "a struggle, contest"), noun of state from tensus, past participle of tendere "to stretch," from PIE root *ten- "to stretch." The sense of "nervous strain" is first recorded 1763. The meaning "stress along lines of electromotive force" (as in high-tension wires) is recorded from 1785.
