1690s, with adjectival suffix -al (1) + Modern Latin centrifugus, 1687, coined by Sir Isaac Newton (who wrote in Latin) in "Principia" (which is written in Latin), from Latin centri- alternative comb. form of centrum "center" (see center (n.)) + fugere "to flee" (see fugitive (adj.)). Centrifugal force is Newton's vis centrifuga.
[centrifugal etymology, centrifugal origin, 英语词源]