词根词缀：-ant, -ants

【来源及含义】Latin: a suffix; a person who, the thing which; people who, things which

【同源单词】abdicant, aberrant, abundant, abundantly, acanthopore, accelerant

词根词缀：vigi-, vig-

【来源及含义】Latin: watchful, wakeful, alert

【同源单词】electronic article surveillance, electronic surveillance, Estot vigilans, invigilate, invigilation, reveille