Old Norse sir, singular ss in Scandinavian mythology, either of two main groups of deities, four of whom were common to the Germanic nations: Odin (q.v.), chief of the Aesir; Frigg (q.v.), Odin's wife; Tyr (q.v.), god of war; and Thor (q.v.), whose name was the Teutonic word for thunder. Some of the other important Aesir were Balder, Jrd, Heimdall, and Loki (qq.v.).
AESIR
Meaning of AESIR in English
Britannica English vocabulary. Английский словарь Британика. 2012