词根词缀：a-, an-

【来源及含义】Greek: prefix; no, absence of, without, lack of; not

【相关描述】These prefixes are normally used with elements of Greek origin, a- is used before consonants and an- is used before vowels.

It affects the meanings of hundreds of words.

There are too many words that use these prefix elements to list all of them on this site; however, there are significant examples listed in this and the other units where they exist.

【同源单词】abacterial, abaptism, abarognosis, abasia, abiocoen, abiogenesis

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