Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Indo-European *pezd-

→ Spanish piojo (derived)
→ French pou (derived)
→ Italian pidocchio (derived)
→ Latin paedor (derived)
→ Portuguese piolho (derived)
→ Romanian păduche (derived)
→ Old Portuguese peollo (derived)