onychitinus
Could not find onychitinas in Logeion dictionaries.
onychitinas Adjective: feminine accusative plural of onychitinus
ŏnȳchītĭnus, a, um, adj., = ὀνυχίτινος,
- of or belonging to onyx (post-class.): crustae (al. onychintinae), Sid. Ep. 9, 7.
ŏnўchītĭnus, a, um (ὀνυχίτινος), dʼonyx : *Sid. Ep. 9, 7.