phaco-comb. form
Stress is usually determined by a subsequent element and vowels may be reduced accordingly; see e.g.
phacoanaphylactic adj.Origin: A borrowing from Greek. Etymon: Greek ϕακός.
Etymology: < ancient Greek ϕακός lentil, of unknown origin.Attested earliest in the French loan phacochoere n. in the first half of the 19th cent., and subsequently in a small number of scientific and technical words, chiefly adaptations of foreign words. Formations within English are found from the late 19th cent., the earliest apparently being phacometer n. Compare post-classical Latin and scientific Latin phaco- (formations in which are found from at least the 16th cent.: see phacoid adj. and n.), German Phako- (formations in which are found from the early 19th cent., apparently earliest in Phakolith : see phacolith n.), French phaco- (formations in which are found from at least the mid 19th cent.). Combining with second elements ultimately of Greek origin.
This is a new entry (OED Third Edition, December 2005; most recently modified version published online March 2020).