Aesir might be derived from the old-Teutonic word Ase, the common word for "god".
The collective name for the the principal race of Norse gods; they who lived in Asgard, and with the All-Father Odin, ruled the lives of mortal men, the other was the Vanir. The Aesir gods under the leadership of Odin, included Balder (god of beauty), Bragi (god of eloquence), Forseti (god of mediation), Freyr (god of fertility, who originally was from the Vanir), Heimdall (guardian of the bridge), Hod (the blind god), Loki (god of fire and ally of the frost giants), Njord (the sea god, and another ex-Vanir), Thor (god of thunder), Tyr (god of war), Vili (brother to Odin), Ve (brother to Odin), and Vidar (Odin's son). The goddesses included Freya (the fertility goddess), Frigg (Odin's wife), Sif (Thor's wife), and Idun (keeper of the apples of youth).
Old Norse: Æsir