Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Swedish ett
Old Norse eitt (inherited)
Elfdalian iett (cognate)

Elfdalian iett (cognate)
Swedish sex (link)
Swedish två (link)
Swedish fyra (link)
Swedish tjugoett (compound)
Swedish etta (mention)
Swedish ettbarnspolitik (affix)
Swedish ettöring (compound)
Swedish kabinett (suffix)
Swedish fasett (suffix)
Swedish facett (suffix)
Swedish ettstruken (compound)