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 fo-
Scottish Gaelic fo (mention)
Old Irish fo (derived)

Scottish Gaelic fo-abhainn (affix)
Scottish Gaelic fo-leantach (affix)
Scottish Gaelic fo-aodach (affix)
Scottish Gaelic fo-lèine (affix)
Scottish Gaelic fo-mhisg (affix)
Scottish Gaelic fo-ùir (affix)
Scottish Gaelic fo-chraicneach (affix)
Scottish Gaelic fo-cheumnaiche (affix)
Scottish Gaelic fo-shruth (affix)