Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Dutch fladderen
German flattern (cognate)
German Falter (mention)
Middle Dutch vleder (derived)
Proto-Germanic *fleþarô (derived)
Proto-Germanic *fifaldǭ (mention)
Old Dutch fledarôn (derived)

English flutter (cognate)
Low German fluddern (mention)
Low German fladdern (mention)
Dutch fladderaar (mention)