Etymograph > Indo-European > Proto-Germanic > Dictionary > *aiþja-

ADJ

capable of taking an oath

Source: Kroonen 2013:15
Words originating from this one
OE ǣþe "qualified to swear an oath" (aiþja- > aiþj > aiþi > āþi > ǣþi > ǣþ) through pgmc-to-oe