Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
splai
←
Ancient Greek
πλάγιος
(derived)
←
Italian
spiaggia
(cognate)
←
Romanian
s
(prefix)
←
Romanian
plai
(prefix)