Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
arvus
←
Proto-Indo-European
*h₂erh₃-
(root)
←
Latin
(mention)
←
Latin
arō
(mention)
←
Latin
(suffix)
←
Latin
vus
(suffix)
→
Breton
erv
(cognate)
→
Latin
arvalis
(mention)
→
Latin
arvum
(mention)
→
Latin
arvensis
(mention)