Like his two brothers, it is believed that his name was originally derived from the Chinese character for an ear of a grain, and the character for fire was assigned later in accordance to his birth story, or conversely, the birth story was created after people started to use the character for fire for his name.
神名は、他の二柱と同様に本来は「穂」に因むものと考えられ、誕生時の説話に因んで「火」の字が宛てられたか、逆に「火」の字が宛てられたことから誕生時の説話が生まれたと考えられる。