In old English the addition of the suffix-yan to an adjective would change the word into a c______ verb, just as the Modern English suffix- added to adjectives to form such verbs as blacken, whiten, redden and awaken.

In old English the addition of the suffix-yan to an adjective would change the word into a c______ verb, just as the Modern English suffix- added to adjectives to form such verbs as blacken, whiten, redden and awaken.

causative(P135)解析:在古英语里,给一个形容词加上-yan的后缀会把该形容词变成一个使役动词,这和现代英语在形容词后面加词缀-en构成使役动词一样,比如blacken, redden, awaken.