Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Middle Welsh araf
Proto-Celtic *aramo- (inherited)
Proto-Celtic *eramo- (mention)
Ancient Greek ἐρῆμος (cognate)
Proto-Indo-European *h₁erh₁-mo- (inherited)
Sanskrit इलयति (cognate)

Welsh araf (inherited)
Middle Welsh araued (suffix)