But there are reasonable points that makurakotoba is regarded not to have been derived from a rhetorical device of poetry because it was found in "Fudoki," whereas jokotoba is solely a technique of poetry.
しかし、枕詞は『風土記』などにもあるように、歌の修辞が原型でないと思われる節があるのに対して、序詞というのはもっぱら歌の技法である。