Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English dandruff
Old English hrēofla (cognate)
English reef (link)
Middle English hurf (mention)
Proto-Germanic *hreubaz (derived)
Proto-Germanic *hreufaz (mention)
Old Norse hrufa (derived)

English reef (link)
English dander (mention)
English dandrufflike (suffix)
English dandruffy (suffix)
English antidandruff (prefix)
English orf (mention)
English beardruff (blend)
English dandruffed (suffix)
Westrobothnian rugu (cognate)
Plautdietsch Roof (cognate)