Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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German achtzehn
Danish atten (cognate)
German acht (compound)
German zehn (compound)
English eighteen (cognate)
West Frisian achttjin (cognate)
Proto-Germanic *ahtōutehun (inherited)
Old High German ahtozehan (inherited)
Dutch achttien (cognate)

English eighteen (cognate)
Cimbrian achtzane (cognate)
German achtzehnjährig (suffix)
German achtzehnfach (suffix)
German elfzehn (mention)
German achtzehnminütig (affix)
German Achtzehneck (compound)
German Achtzehn (mention)
German achtzehnwöchig (affix)
German achtzehnmal (suffix)
Icelandic átján (cognate)
Dutch achttien (cognate)
Pennsylvania German achtzeh (cognate)
Pennsylvania German achzeh (cognate)
Yiddish אַכצן (cognate)