Fukasu 【深栖】3 The Japanese surnames etymology dictionary.
Gunma-ken Maebashi-shi . Thing . Gunma-ken Maebashi-shi Meiji New surname by the monk of the Tendai sect of Tendai sect in Horinokushima Temple. From the "circle" of the temple's Koenji and the extension of the hospital's name (Enmei), "extension". There is "extension" in Enryakuji, the head temple of Tendai sect.