What is the X in X-mas?
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). Centrifugal force is Newton's vis centrifuga.
centrifugal cen·trif·u·gal (sěn-trĭf'yə-gəl, -trĭf'ə-)
Moving or directed away from a center or axis.
Transmitting nerve impulses away from the central nervous system; efferent.