unit of force, 1904, named in honor of Sir Isaac Newton (1642-1727). Related: Newtonian.
fem. proper name, Biblical wife of Abraham and mother of Isaac, from Hebrew, literally "princess," from sarah, fem. of sar "prince," from sarar "he ruled," which is related to Akkadian sharratu "queen." A popular as a name for girls born in U.S. in 1870s and 1978-2000.
"tending or moving toward a center," 1709, from Modern Latin, coined 1687 by Sir Isaac Newton (who wrote in Latin), from Latin centri-, alternative combining form of centrum "center" (see center (n.)) + petere "to make for, go to; seek, strive after" (from PIE root *pet- "to rush, to fly"). Centripetal force is Newton's vim ... centripetam.
surname, attested from c. 1200, literally "dweller by a pit or hollow;" see pit (n.) + man (n.). Meaning "one who works in a pit or mine" is from 1761. As the name of a popular system of shorthand writing, by 1865, from the name of U.S. popular educator Isaac Pitman (1813-97), who devised it in 1837.
"flying off or proceeding out from a center," 1690s, with adjectival suffix -al (1) + Modern Latin centrifugus, 1687, coined by Sir Isaac Newton in "Principia" (which is written in Latin), from Latin centri-, alternative combining form of centrum "center" (see center (n.)) + fugere "to flee" (see fugitive (adj.)). Centrifugal force is Newton's vis centrifuga.
fem. proper name, biblical wife of Isaac, mother of Jacob and Esau, from Late Latin Rebecca, from Greek Rhebekka, from Hebrew Ribhqeh, literally "connection" (compare ribhqah "team"), from Semitic base r-b-q "to tie, couple, join" (compare Arabic rabaqa "he tied fast"). Rebekah, the form of the name in the Authorized Version, was taken as the name of a society of women (founded 1851 in Indiana, U.S.) as a complement to the Odd Fellows.