Ah and OMG in old writing, 5 letters
Alphabetical script, old Irish, 5 letters
Ancient Irish alphabet, 5 letters
Archaic Irish script, 5 letters
Early British Isles script, 5 letters
Early Irish alphabet, 5 letters
Old alphabetical script, 5 letters
Old Gaelic alphabet, 5 letters
Old Irish alphabet system, 5 letters