According to Wilson, an early reference to the word samurai appears in the Kokin Wakashū (905–914), the first imperial anthology of poems, completed in the first part of the 10th century.
Menurut Wilson, referensi awal untuk kata "samurai" muncul di Kokin Wakashū (905-914), kekaisaran pertama antologi puisi, selesai pada bagian pertama abad ke-10.