Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Irish eochair
Proto-Celtic *exskoris (inherited)
Scottish Gaelic iuchair (cognate)
Proto-Indo-European *(s)ker- (derived)
Latin curvus (cognate)
Middle Irish eochair (inherited)
Middle Irish ochair (inherited)
Middle Irish fochair (mention)
Middle Irish iuchair (inherited)

Irish dordeochair (affix)
Irish eochairchlár (affix)
Irish eochairdheacracht (compound)
Irish eochairléacht (compound)
Irish eochairfhreagracht (compound)
Irish eochairthosaíocht (compound)
Scottish Gaelic iuchair (cognate)