Etymology
Advertisement
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.
Related entries & more 
Advertisement
government (n.)

late 14c., "act of governing or ruling;" 1550s, "system by which a thing is governed" (especially a state), from Old French governement "control, direction, administration" (Modern French gouvernement), from governer "to steer, be at the helm of; govern, rule, command, direct," from Latin gubernare "to direct, rule, guide, govern," originally "to steer, to pilot"(see govern). Meaning "governing power" in a given place is from 1702. Compare governance.

Related entries & more 
self-government (n.)
1734, of persons; 1798, of states, from self- + government. Related: Self-governing (1680s).
Related entries & more 
IRS 
also I.R.S., initialism (acronym) of Internal Revenue Service, U.S. federal government tax collection agency, attested by 1954. The office dates to 1862; name changed 1953 from Bureau of Internal Revenue.
Related entries & more 
agential (adj.)

"pertaining to an agent or to an agency," 1847, from Medieval Latin agentia (see agency) + -al (1). Related: Agentially.

Related entries & more 
Advertisement
CIA 
U.S. civilian espionage agency, initialism (acronym) of Central Intelligence Agency, founded 1947 as successor to the Office of Strategic Services (OSS).
Related entries & more 
Tass (n.)

official news agency of the former U.S.S.R., formed in 1925, an acronym of Russian T'el'egrafnoye ag'enstvo Sov'etskovo Soyuza  "Telegraphic Agency of the Soviet Union."

Related entries & more 
EPA 
initialism (acronym) for Environmental Protection Agency, U.S. federal agency proposed by President Richard Nixon and created in December 1970.
Related entries & more 
WPA 
1936, initialism (acronym) from Works Progress Administration, U.S. agency established 1935.
Related entries & more 
NASA 
U.S. space agency, acronym of National Aeronautics and Space Administration, set up in 1958.
Related entries & more