Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Pennsylvania German aa
Old English ēac (cognate)
German auch (cognate)
German an (cognate)
English on (cognate)
Proto-Germanic *auk (inherited)
Proto-Germanic *ana (inherited)
Old High German ouh (inherited)
Old High German ana (inherited)
Proto-Indo-European *h₂en- (derived)
Dutch ook (cognate)
Dutch aan (cognate)
Pennsylvania German auch (link)

Pennsylvania German aadreffe (link)
Pennsylvania German aaduh (link)
Pennsylvania German aafingre (link)