Tendency
来自Big Physics
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early 17th century: from medieval Latin tendentia, from tendere ‘to stretch’ (see tend1).
wiktionary
Ultimately from Latin tendere / tendō.
etymonline
tendency (n.)
1620s, from Medieval Latin tendentia "inclination, leaning," from Latin tendens, present participle of tendere "to stretch, extend, aim," from PIE root *ten- "to stretch." Earlier in same sense was tendaunce (mid-15c.), from Old French tendance.
