词根词缀：os-, oss-, ost-, oste- os [singular] or ossa [plural]

【来源及含义】Latin: bone

【同源单词】deossification, interosseous, ossature, osseous, ossicle, ossiculectomy

词根词缀：singl-, singular-

【来源及含义】Latin: one each, one at a time

【同源单词】single, singleness, singleton, singly, singular, singularism