Etymology and distribution of 友定.

Tomosada 【友定】^{レベル4
About 800}  The Japanese surnames etymology dictionary.

Oosaka-fu Oosaka-shi Sumiyoshi Ward. Philippine style . Summary . Synthesis of Varianas and Okano. Oosaka-fu Oosaka-shi Sumiyoshi in Sumiyoshi-ku from the husband's last name Barinenas and his own surname Okano from February 1990 permission of family court. The original binding is unknown. 岡野 Okano reference.