Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Italian
serpe
←
Proto-Indo-European
*serp-
(derived)
←
Latin
serpēns
(inherited)
←
Latin
serpō
(mention)
→
Spanish
sierpe
(cognate)
→
Italian
serpeggiare
(affix)
→
Portuguese
zarpar
(mention)
→
Portuguese
serpe
(cognate)