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 dropa
Proto-Germanic *drupô (inherited)
Old High German tropfo (cognate)
Old Norse dropi (cognate)
Old Dutch dropo (cognate)
Old Frisian *dropa (cognate)
Old Saxon dropo (cognate)

English drop (inherited)
English drop (mention)
Old English dropian (affix)
Old English regndropa (compound)
Old English dropmælum (suffix)
Old High German tropfo (mention)
Old Norse dropi (cognate)
Old Saxon dropo (mention)