Namai 【生井】5 The Japanese surnames etymology dictionary.
Gifu-ken Kaidzu-shi . Shiga-ken Ootsu-shi · Kyouto-fu Originated from Mt. Hiei in Kyouto-shi . Gifu-ken Kaidzu-shi Meiji New surname by monk of Roto-kyo in Jodo Shin Buddhism in Matsuki, Kaizu town. In the same temple tells that the former was called Tendai Buddha from Hieizan.