This is also proved by the fact that a large number of makurakotoba were newly created or revised by Hitomaro, who left many poems that were contained in "Manyoshu."
これは『万葉集』に書かれた歌を多く残している人麻呂によって新作・改訂された枕詞がきわめて多いということによっても、裏付けられることであろう。