Etymology and distribution of 努力.

Nuriki 【努力】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Nara-ken , Oosaka-fu . Terrain . From near the front. Nara-ken Sakurai-shi Shiba was in the Edo period in the clan of Shibaura of the Clan office.

* In Aichi-ken western part (formerly Owari nation) tell her that descendents of Mr. Maekuchi called. Estimated in the Heian period. 前口 Maeguchi reference.

※ Goguryeo system . Occupation . There is a record in 761 (Tenpyo Treasure 5 years). There is a record in Nagano-ken in 799 (18 years old). The pronunciation in estimation is Zenbe, Senhou.