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Welsh arian
Breton arc'hant (cognate)
Proto-Brythonic *arɣant (inherited)
Proto-Celtic *argantom (inherited)
Irish airgead (cognate)
Proto-Indo-European *h₂erǵ- (root)
Proto-Indo-European *h₂erǵ- (inherited)
Latin argentum (cognate)
Old Welsh argant (inherited)
Middle Welsh ariant (inherited)

English Ariana (mention)
Welsh arianrhod (compound)
Welsh Ariannin (affix)
Welsh ariannog (affix)
Irish airgead (cognate)
Scottish Gaelic airgead (cognate)
Ancient Greek ἀργός (cognate)
Manx argid (cognate)