Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Old English a-
Old English ar- (mention)
German er- (cognate)
Proto-Germanic *uz- (inherited)
Old High German ar- (cognate)
Old High German ir- (mention)

English abb (mention)
English abode (mention)
English aghast (inherited)
English around (inherited)
English a (inherited)
English amanse (mention)
English astart (inherited)
English atene (mention)
Old English abufan (affix)
Old English alibban (affix)
Old English awyrtwalian (link)
Old Saxon a- (cognate)