词根词缀：etio-, aetio-

【来源及含义】Greek: cause, causation, originating; that which causes or originates something

【同源单词】aetiologizing, etiogenic, etiolated, etiolation, etiologic, etiological

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