Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old English a
Proto-Germanic *aiwaz (derived)
Proto-West Germanic *aiw (derived)

English above (mention)
English no (mention)
English adays (inherited)
Old English æ (alter)
Old English melda (suffix)
Old English alimpan (prefix)
Old English -linga (suffix)
Old English haca (suffix)
Old English abrecan (prefix)
Old English migoþa (suffix)
Old English forhatena (suffix)
Old English swica (suffix)
Old English geonga (suffix)
Old English widuwa (suffix)
Scots athort (mention)
Scots abufe (mention)