词根词缀：-or; -our (primarily British)

【来源及含义】Latin: a suffix; state of, result of; he who, that which

【同源单词】abdicator, abductor, ablator, acanthor, accelerator, adductor

词根词缀：palp-, palpo-, palpi-

【来源及含义】Latin: to touch gently, to stroke; to pat

【同源单词】impalpability, impalpable, impalpably, labipalpus, light touch palpation, longipalp