The Japanese surnames etymology dictionary.
Kumamoto-ken . Kumamoto-ken Tamana-gun Nagasu -machi Tell her that he changed his name from long -sleeved last name, which he called "Nagasu's best" in Nagasu because he had paid the most yearly contribution in the Edo period. It is unknown whether the fire is present or not. It is based in the same place. Nagasu was a place name that was called "Nagakari no Hama" in the Nara period.