Etymology and distribution of 貞岡.

Sadaoka 【貞岡】^{レベル4
About 600}  The Japanese surnames etymology dictionary.

Kagoshima-ken , Oosaka-fu .

① things . Iwate - ken Shimohei - gun Fudai - mura Tell the 16th place that Terasaka has built a new house. Iwate - ken Miyako - shi In Tezuka tell me that it is the Meiji New Last Name due to the division. From the Shintomiya gate in the Edo period. An example of the location of the gate. Kagoshima-ken Minamisatsuma-shi Koneda River field. Kagoshima-ken Isa-shi Hishikari Arata, Kagoshima-ken Minamisatsuma-shi Kaneda Kominato is Shinya -kimon gate. Kagoshima-ken Izumi-shi Takao-cho In Eiuchi is a shinya residence. Kagoshima-ken Ichikikushikino-shi Hashima, Kagoshima-ken Minamikyuushuu-shi Kawabe-cho shrine, Kagoshima-ken Minamikyuushuu-shi Shinbashi in Nagata, Kawabe-cho.

② Occupation . At Nagasaki-ken , the shop name of the new shop, Okinawa-ken Okinawa-shi From the shop of the new shop (Miya) at the crossing. Meiji New Last name in estimation. Okinawa-ken pronunciation is Mire. At Yamaguchi-ken Hagi-shi it is atarashiya.

③ Iwate-ken Morioka-shi Originated from a small shop in a huge crow .

④ Aomori-ken Hirakawa-shi Origin of a new shop (Aya). A place name with a record since the Edo period. The place name was also written as "a rough shop". It was in the Edo period in the same place.

⑤ Originated from Gunma-ken Kanra-gun Kanra-machi near Tenzai (old: Shinya (Nya) Township). A place name with a record since the Nara period.

⑥ Akita-ken Originated from Akita-shi 's new shop (Aya). A place name with a record since the Edo period.

※ Wakayama-ken Shinguu-shi recorded in the Muromachi period. Also called "new".

Teioka 【貞岡】^{レベル4
About 600}  The Japanese surnames etymology dictionary.

Aichi-ken , Niigata-ken .

① things . Aichi-ken Nishio-shi Meiji New surname by monk of Keitokuji in Jodo Shin Buddhism in Ikeda, Ichi-cho. From the Mt. Fallu Mountain of the same temple.

② Creation . From "Falun (Borin)" which means Buddhist doctrine. Niigata-ken Gosen-shi Meiji New surname by Oriwaji monk of Shingon sect in monasugi . There is a "ring" in Oriwaji.