词根词缀：numer-, number-

【来源及含义】Latin: distribution; to count, to reckon

【同源单词】alphanumeric, alphanumerical, alphanumerics, annumerate, annumeration, apocalyptic number

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