Each aett (or “family”) is named for the god who is associated with the first rune in the row. The first row, beginning with Fehu, is known as Freyr’s Aett (sometimes called “Frey’s Aett”). The second row, beginning with Hagalaz, is Hagal’s Aett, though since little is known about the god Hagal, some people attribute this aett to Heimdall. Tyr’s Aett, beginning with Teiwaz, makes up the third row.
