Etymology and distribution of 豊増.

Toyomasu 【豊増】^{レベル4
About 1,300}  The Japanese surnames etymology dictionary.

Ishikawa-ken , Oosaka-fu , Hyougo-ken .

① Occupation . From a builder building wooden buildings. Fukui-ken Sabae-shi Yaeri town was in the Edo era in the Sabae clan in the clan office. Kagoshima-ken Ibusuki-shi opening from Senda from the master gate of the gate division system which was in the Edo period.

② Hyougo-ken Sumoto-shi Originated from the masterpieces of the small letters of Anzencho Ohorohara .