Etymology and distribution of 大作.

Oosaku 【大作】^{レベル4
About 1,400}  The Japanese surnames etymology dictionary.

Iwate-ken , Nagano-ken , Hokkaidou .

① Iwate-ken tells that Iwate-ken Shiwa-gun Shiwa-chou resident from the Oda Nakazawa in the small stone Koiwa Noge which was in the waters of the Sanno Dam in the Tate . Period, location unknown. There is also a story that Akita-ken 's appearance was also written as " Otanaka ". 大田中 Ootanaka reference.

② Nagano-ken Toumi-shi It was in the Edo period in Tanaka. Nagano-ken Nakano-shi Odaka (Kodanaka) is a place name with a record since the Sengoku period.

③ It was in the Edo period at the end of Hyougo-ken Sanda-shi . Nara-ken Tenri-shi Odagan (Kodanaka) The town was a place name with a record since the Heian period.

Daisaku 【大作】^{レベル4
About 1,400}  The Japanese surnames etymology dictionary.

Ishikawa-ken , Oosaka-fu · Hyougo-ken . Terrain . From the place to drink and the water. Ishikawa-ken Kahoku-gun Tsubata-machi It is distributed in Ota.