Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
congrego
←
Latin
con
(prefix)
←
Latin
gregō
(prefix)
→
Catalan
congregar
(borrowed)
→
Latin
congregativus
(suffix)