词根词缀：clud-, claud-, claus-, clos-, -clude, -clois, -cluding, -cluded, -clus, -clusion, -clusive

【来源及含义】Latin: to close, to shut

【同源单词】aclusion, aqua exclusa, aquiclude, buccoclusion, clause, claustral

词根词缀：infra-, infero-, infer-

【来源及含义】Latin: under, below, beneath

【同源单词】anteroinferior, inferior, inferiority, inferiorly, infernal, infernally