Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old Irish fis

→ Welsh Arthwys (cognate)
→ Irish fios (inherited)
→ Scottish Gaelic fios (inherited)
→ Scottish Gaelic cogais (mention)
→ Manx fys (inherited)
→ Old Irish cubus (prefix)
→ Old Irish cocubus (mention)