Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Galician merda
Proto-Indo-European *smerd-h₂- (derived)
Proto-Italic *(s)merdā (inherited)
Latin merda (inherited)
Old Portuguese *merda (inherited)

Galician de merda (mention)
Galician merdento (suffix)
Galician enmerdar (affix)