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 -estre
Old English -ere (mention)
Proto-Germanic *-istrijǭ (inherited)
Proto-Germanic *-astrijǭ (mention)
Proto-Germanic *-ārijaz (mention)

English lobster (mention)
English lobster (mention)
English -ster (inherited)
Old English loppestre (mention)
Old English loppestre (mention)
Old English hoppestre (affix)
Old English wæpnwifestre (mention)
Old English bepæcestre (affix)
Dutch -ster (cognate)