Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English keel
English kile (doublet)
Middle English kele (inherited)
Scottish Gaelic cìl (borrowed)
Proto-Germanic *keluz (derived)
Proto-Indo-European *gewlos (derived)
Old Norse kjǫlr (derived)

English cool (mention)
English stern (link)
English keel over (link)
English kile (doublet)
English keelboat (compound)
English cholla (mention)
English keelless (suffix)
English keelage (suffix)
English keeler (suffix)
English keelman (suffix)
English keelback (compound)
English on keel (mention)
English off keel (mention)
English keelful (suffix)
English keely (suffix)
Czech kýl (link)
Welsh cil (borrowed)
Danish køl (cognate)
German Kiel (cognate)
French quille (link)
Scottish Gaelic cìl (borrowed)