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 wæterian
Proto-West Germanic *watrōn (inherited)
Proto-West Germanic *watar (derived)
Old Frisian wetria (cognate)

English water (inherited)
Old English gewæterian (prefix)
Old English wæterung (suffix)
Scots watter (inherited)