Etymology and distribution of 月共.

Tsukitomo 【月共】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Ibaraki-ken , Chiba-ken .

① Ibaraki-ken Hitachi-shi birthplace of Namerikawa-cho. A place name with a record since the Edo period.

② Chiba-ken Narita-shi Birth of Namerugawa (Nomegawa). Place name with a record in "Miyako" notation in the Muromachi period. The place name was also written as "river".

③ Toyama-ken birth originated from the Namerikawa city. A place name with a record since the Kamakura period. Toyama-ken Tradition in the fabric of Kurobe-shi .