Etymology
Advertisement
causal (adj.)

1530s, in grammar and logic, "expressing a cause," from Latin causalis "relating to a cause," from causa "a cause, reason" (see cause (n.)). From 1560s as "relating to a cause or causes;" 1640s as "being a cause, producing effects."

Related entries & more 
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"). The meaning "establishment where business is done for another" is recorded by 1861.

Related entries & more 
causality (n.)

c. 1600, "that which constitutes a cause," from causal + -ity. From 1640s as "the relation of cause to effect."

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 
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 
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 
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 
Pinkerton 

in reference to a semi-official detective, 1888 (Pinkerton men), from the detective agency begun in U.S. 1850 by Allan Pinkerton (1819-1884).

Related entries & more