onychophagy

Term: onychophagy

Literally meaning: “process of eating(biting) nails”

Origin: Anc Greek

/ïνυξ/onix(=nail) > /ïνυχος/onychos (genitive)

+ φάγω/phago(=to eat)

Coined/History 

(?)

Definition

Onychophagy is the medical term for the habit of nail biting which eventually results to nail deformation.