O.N. a in originally close syllable > ae, written a: 
          anger, hansell, apert, ban, blabber,
          slak, cast, chaff, dash, dram, bang,
          fang, stang, lack, etc. 
      O.N. a in originally close syllable before r remains
          a:  bark, carl, carp, farrand, garth,
          harth, scarth, swarf, and harsk (O.  Dan.). 
      O.N., O. Dan. a in close syllable > e in blether,
          forjeskit, welter.
        a in close syllable > [-e] (ay, ai) in aynd,
          baittenin.
        a in close syllable remains a, written o in
          cog. 
      O.N. a in originally open syllable regularly becomes
          [-e], written a, ai, ay:  dasen, flake,
          maik, scait, etc. 
      O.N. a + g > [-e] written ai in braid, gane
          (to profit).
        a + g > aw in bawch.  In mawch eth fell out
          and a developed as a before g.

    e.

      O.N. e remains in airt, bekk, bleck, cleck,
        cleg, egg (to incite), elding, esping,
        fleckerit, freckled, gedde, gengeld, kendell,
        melder, mensk, nevin, werr, spenn, stert,
        sker. 
      O. Dan. e remains in sprent. 
      O.N. e becomes i in lirk, kitling, and before
          ng in ding, flingin, hing, and also in
          skrip, styddy. 
      O.N. e > ae, written a, in dapill, clag. 
          Cp. sprattle in Burns.
        > ae before r in ware.
        > a before r in karling. 
      O.N. e > i in neefe (nieve). 
      O.N. e appears as u in studdy.  See word list. 
      O.N. e (from older aei) > [-e] in hailse.
        e + g > e written a, ai: e.g., haine,
          gane (to suit).

    i.

      O.N. i generally remains i:  bing, grith, kist,
          link, lite, titling, wilrone, frequently
          written y:  byng, chyngill, gyll, etc. 
      O.N. i before st > e:  gestning, restit.
        i > [-i] in ithand (ythand), and ei in
          eident.