Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English eighty
Old English hundeahtatiġ (inherited)
German achtzig (cognate)
English eight (affix)
English -ty (affix)
Middle English eiȝti (inherited)
Middle English eyȝty (mention)
Middle English eiȝtety (mention)
Middle English aghty (mention)
West Frisian tachtich (cognate)
Proto-Germanic *ahtōutēhundą (inherited)
Icelandic áttatíu (cognate)
German Low German tachentig (cognate)
Dutch tachtig (cognate)
Norwegian åtti (cognate)
Scots hechty (cognate)
Scots auchty (mention)
Saterland Frisian tachentich (cognate)
Swedish åttio (cognate)

English eight (link)
English eightieth (suffix)
English twelfty (mention)
English eightyish (suffix)
English eightyfold (suffix)
English octogenary (mention)
Cimbrian askh (cognate)
Cimbrian achtzekh (cognate)
Pennsylvania German achtzich (cognate)
Tok Pisin eti (inherited)