vætti (OSw) vætti (ON) noun

In ON (neuter), a testimony, particularly one given by a witness known as váttr (see vatter). In OSw (masc.), a testimony as well as a witness or a group of witnesses.

oath OSw ÖgL Rb
OSw YVgL Föb
oath-making OSw YVgL Rlb
oath-taker OSw ÖgL Rb
oath-taking OSw ÄVgL Rlb
testimony OIce Grg Þsþ 22, 31 Feþ 144
witness OSw YVgL Tb, Add Refs:

Cleasby and Vigfusson s.v. vætti; Fritzner s.v. vætti; Hertzberg s.v. vætti; Schlyter s.v.v. vat, vatter, vætti