Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Manx un
Breton unan (cognate)
Proto-Celtic *oinos (derived)
Irish aon (cognate)
Proto-Indo-European *óynos (derived)
Cornish onan (cognate)

Manx un- (mention)
Manx un-wheeyl (prefix)
Manx unheeley (prefix)
Manx unskelf (prefix)
Manx unnane (suffix)
Manx undaah (prefix)