O. N. ī appears as e in skrech, probably pronounced skrich.
O. N. ī > ē, written ei, in quey, gleit, keik.
O. N. ī > ĭ in scrip, wick, and before original xl in wissle (wyssyl).
The corresponding word in Norse also has a short vowel, but changed to e, veksl, vessla (and versla).
ō.
O. N. ō > ū, written o, oo, u, eu: crove, rove, unrufe, hoolie, hulie, lufe, ruse, roose, sleuth, tume.
O. N. ō > ou in clour.
ō > oy in toym (Bruce), exact sound uncertain.
ō + l > ow in bow.