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 rocc
Old English bisċoprocc (link)
Old English brēostrocc (link)
Old English edroc (link)
Proto-Germanic *rukkaz (inherited)
Proto-Germanic *rukjaną (derived)
Proto-Indo-European *rewg- (derived)

English frock (cognate)
English rochet (mention)
French froc (cognate)
Old French froc (cognate)