principal Hindu sacred book, 1776, Reig Beid, from Sanskrit rigveda, from rg- "praise, hymn, spoken stanza," literally "brightness" (from PIE *erkw- "to radiate, beam; praise") + veda "knowledge" (from PIE *weid-o-, from root *weid- "to see"). A thousand hymns, orally transmitted, probably dating from before 1000 B.C.E. Related: Rig-vedic.
1849, French, literally "of strictness," thus "according to obligation of convention." See rigor.
"right of each citizen to liberty, equality, etc.," 1721, American English, from civil in the sense "pertaining to the citizen in his relations to the organized commonwealth or to his fellow citizens." Specifically of black U.S. citizens from 1866, in reference to the Civil Rights Bill, an act of Congress which conferred citizenship upon all persons born in the United States, not subjects of other powers, "of every race and color, without regard to any previous condition of slavery." Civil Rights Movement in reference to the drive for racial equality that began in U.S. in mid-1950s is attested by 1963.
Rarely are we met with a challenge, not to our growth or abundance, or our welfare or our security, but rather to the values and the purposes and the meaning of our beloved nation. The issue of equal rights for American Negroes is such an issue. And should we defeat every enemy, and should we double our wealth and conquer the stars, and still be unequal to this issue, then we will have failed as a people and as a nation. [Lyndon Johnson, speech introducing Voting Rights Act, March 15, 1965]
the hand opposed to the left hand, late Old English rihthand; see right (adj.2) + hand (n.). So called as the one normally the stronger of the two. Applied to the right side generally by c. 1200. As a symbol of friendship or alliance, by 1590s. Figurative for "indispensable helper, person of use or importance," 1520s (right-hand man is attested by 1660s). Right-handed "having the right hand more useful than the left" is attested from late 14c.; as an adjective from c. 1700. Right-hander, of persons, "one who uses the right hand more skillfully than the left" is by 1885.