Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Cornish chi
Proto-Brythonic *tɨɣ (inherited)
Proto-Celtic *tegos (inherited)
Proto-Indo-European *(s)teg- (root)
Proto-Indo-European *(s)teg- (derived)

Cornish chiow (suffix)
Cornish asklotti (mention)
Cornish gwerthji (compound)
Cornish teylu (affix)
Cornish arghantti (compound)