Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
serba
←
Proto-Indo-European
*ser-
(derived)
←
Latin
servāre
(inherited)
←
Latin
servō
(mention)
→
Romanian
serbare
(suffix)
→
Romanian
sărbătoare
(mention)
→
Aromanian
sãrbedz
(cognate)