词根词缀：-or; -our

【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：pro-, por-, pur-

【来源及含义】Greek > Latin: a prefix signifying before; forward, forth; for, in favor of; in front of; in place of, on behalf of; according to; as, to place before; to go before or forward, to throw forward

【相关词根词缀】 Related before-word units: ante-; antero-; anti-; pre-.

【同源单词】portend, portent, portentous, portentously, portentousness, pro

词根词缀：sequ-, sequi-, secut-, suit-, -sue

【来源及含义】Latin: follow, followed, following

【同源单词】Ab abusu ad usum non valet consequentia, archaeological sequence, consecutive, consecutively, consecutiveness, consequence