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：-ic
【来源及含义】Greek: a suffix; pertaining to; of the nature of, like; in chemistry, it denotes a higher valence of the element than is expressed by -ous
【同源单词】abdominocystic, abdominopelvic, abdominoscopy, abdominothoracic, abiogenetic, abiogenic
词根词缀：xeno-, xen-, -xenic, -xenism, -xenist, -xenous, -xeny
【来源及含义】Greek: foreign, foreigner; alien; different; extraneous; strange, stranger; and by extension, guest
【相关描述】The "x" in xeno- is pronounced "z"; "zeno". Greeks are said to have considered any stranger a "guest" and modern Greek includes xenodocheion a "guest house" or "house for guests" or its modern version of "hotel".
The etymological meaning usually denotes some aspect of a relationship involving guests or visitors of some kind.
【相关词根词缀】 Related "foreign, strange" word families: allotrio-; barbar-.