Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Irish cluas
Proto-Celtic *kloustā (inherited)
Welsh clust (cognate)
Irish clois (mention)
Proto-Indo-European *ḱlew- (root)
Old Irish clúas (inherited)

English Lucey (mention)
Irish cluasach (affix)
Irish clos- (mention)
Irish cluas- (mention)
Irish cluasóg (affix)
Irish cluaslia (affix)
Irish cluaschosaint (affix)
Irish cluasmharcáil (affix)
Irish gearrchluasach (affix)