adj. sworn
adv. by oath, under oath, in a sworn manner
n. oath, the quality of being sworn
v. to swear, make or become sworn

Dovahkiin, Dovahkiin, naal ok zin los vahriin, wah dein vokul mahfaeraak ahst vaal!
Dragonborn, Dragonborn, by his honor is sworn, To keep evil forever at bay!
(Book, Songs of Skyrim)

Related to vaat ‘to swear’.

Distinct word from vaat, not to be confused for its past participle. Typically not used as a verb.