Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Middle English mous
Old English mūs (inherited)
Proto-Germanic *mūs (inherited)
Proto-West Germanic *mūs (inherited)
Proto-Indo-European *múh₂s (inherited)

English mouse (inherited)
English dormouse (mention)
Middle English mousepese (affix)
Middle English mousere (affix)
Middle English mowsyn (affix)
Middle English reremous (affix)
Scots moose (derived)