conj. when; at the time of, in the event that

Ahrk fin norok paal graan fod nust hon zindro zaan!
And the fiercest foes rout when they hear triumph's shout!
(Book, Songs of Skyrim)

Ahrk fin Kel lost prodah, do ved viing ko fin krah, tol fod zeymah win kein meyz fundein!
And the Scrolls have foretold, of black wings in the cold, that when brothers wage war come unfurled!
(Book, Songs of Skyrim)

See synonym rul ‘when’, which is used exclusively at the beginning of sentences and phrases.