Etymology and distribution of 延木.

Nobuki 【延木】^{レベル3
About 60}  The Japanese surnames etymology dictionary.

Nagano-ken Ueda-shi . Nagano-ken Ueda-shi Origin of Hoyano (Hoya). In the Kamakura period the name of the place with a record as "locker". The place name was also written as "Hotoya".