Abasy
The Abaasy or Abaahy (
Sakha: абаасы/абааһы) are demons of the underworld in the mythology of the Sakha (also known as the Yakuts). Either their entire body or just their teeth are made of iron
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The concept of the abaasy is so ingrained into Sakha thought that the verb абааһы көр- (to see abaasy) is the everyday term for "to hate" or "to dislike".