æ is the umlaut of OHG. ā, as lære, empty, næme, thou tookest = OHG. lāri, nāmi.
œ is the umlaut of OHG. ō, as schœne, beautiful, hœher, higher, hœren, to hear = OHG. scōni, hōhiro, hōren from *hōrjan older *hausjan.
iu = (1) OHG. iu (diphthong), as liute, people, kiuset, he chooses = OHG. liuti, kiusit.
iu = (2) the umlaut of OHG. ū, as hiuser, houses, briute, brides = OHG. hūsir, brūti.
3. The diphthongs ei, ou, uo = the corresponding OHG. diphthongs, as bein, bone, leiten, to lead, schreip, I wrote = OHG. bein, leiten, screib.
ouge, eye, houbet, head, bouc, I bent = OHG. ouga, houbit, boug.
bruoder, brother, stuont, I stood, vuor, I went = OHG. bruoder, stuont, fuor.
ie = (1) OHG. ie (diphthong) older ia, ea, ē (Germanic ē), as hier, here, miete, pay, reward, gienc, I went = OHG. hier, mieta, gieng.
ie = (2) OHG. io (Germanic eu), as bieten, to offer, liep, dear = OHG. biotan, liob.
ie = (3) the OHG. io which occurs in the preterite of the old reduplicated verbs whose presents have ou, ō, uo ([§ 87]), as inf. loufen, to run, stōȥen, to push, ruofen, to call, preterite lief, stieȥ, rief = OHG. liof, stioȥ, riof.