Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Scottish Gaelic obair
Proto-Indo-European *h₃ep- (derived)
Latin opera (derived)
Old Irish opar (inherited)

Scottish Gaelic obraich (mention)
Scottish Gaelic obraiche (suffix)
Scottish Gaelic obair-lann (suffix)
Scottish Gaelic ath-obair (prefix)
Scottish Gaelic clas-obrach (mention)
Scottish Gaelic obair-dachaigh (affix)