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 la
Proto-Celtic *letos (derived)
Proto-Celtic *ɸletos (mention)
Latin latus (cognate)
Old Irish leth (mention)

Irish le (inherited)
Irish libh (compound)
Scottish Gaelic le (inherited)
Manx lesh (mention)