onycho-comb. form
Stress is usually determined by a subsequent element and vowels may be reduced accordingly; see e.g.
onychomancy n.Origin: A borrowing from Greek. Etymon: Greek ὄνυχο-.
Etymology: < ancient Greek ὄνυχο-, combining form (in e.g. ὀνυχογραϕεῖσθαι to be scored with the nail) of ὄνυξ nail (of the finger or toe) (see onyx n.). Compare post-classical and scientific Latin onycho- (formations in which are found from the mid 16th cent.), French onycho- (formations in which are found from the second half of the 19th cent.).Combining with second elements ultimately of Greek origin. Attested earliest in the mid 17th cent. in the classical borrowing onychomancy n. English formations are found from the first half of the 19th cent. (apparently earliest in onychophagist n.).
This is a new entry (OED Third Edition, June 2004; most recently modified version published online September 2019).