onychia/əʊˈnɪki.ə/EtymologySee onyx.onychia means A whitlow (infection near a finger or toe nail). Lexicurio rates it Sui generis — a strength score of 87 out of 100.onychia is pronounced /əʊˈnɪki.ə/.nounA whitlow (infection near a finger or toe nail)