Agency
来自Big Physics
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mid 17th century: from medieval Latin agentia, from agent- ‘doing’ (see agent).
wiktionary
From Medieval Latin agentia, from Latin agēns (present participle of agere(“to act”)), agentis (cognate with French agence, see also agent).
etymonline
agency (n.)
1650s, "active operation;" 1670s, "a mode of exerting power or producing effect," from Medieval Latin agentia, abstract noun from Latin agentem (nominative agens) "effective, powerful," present participle of agere "to set in motion, drive forward; to do, perform," figuratively "incite to action; keep in movement" (from PIE root *ag- "to drive, draw out or forth, move"). Meaning "establishment where business is done for another" first recorded 1861.
