词根词缀：onych-, onycho-, ony-, -onychia, -onychial, -onychium, -onyx-

【来源及含义】Greek: claw, nail; fingernails, toenails

【相关词根词缀】A cross reference, directly or indirectly, involving a word unit meaning "nail (finger, toe); claw": ungu-.

【同源单词】acronychous, acronyx, anonychia, anonychosis, Baryonyx Walkeri, dolichonychia

词根词缀：tillo-, till-

【来源及含义】Greek: to pluck, tear, pull

【同源单词】onychotillia, onychotillomania, peotillomania, rhinotillomania, tillexis, tilmus