- (formal)
acting as the cause of something 成为原因的；起因的 - (
grammar 语法 a causative verb expresses a cause, for example blacken, which means ‘to cause to become black’ 使役的（动词，如 blacken）
Word Originlate Middle English: from Old French causatif, -ive, or late Latin causativus, from causare ‘to cause’.