Etymology and distribution of 常増.

Tsunemasu 【常増】^{レベル3
About 70}  The Japanese surnames etymology dictionary.

Ehime-ken Imabari-shi , Kagawa-ken · Kanagawa-ken . Terrain . Ehime-ken Imabari-shi Totomachi was in the Edo period in the Imabari clan of the Clan Office. The same clan tells that Shiga-ken Nagahama-shi Kuroda's Mr. Kuroda moved to Fukui-ken west (old: Wakasa country) and called "West" from Kuroda's "black". Estimated from tradition in the early Edo period. 黒田 Kuroda reference.