Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
regionary
←
Proto-Indo-European
*h₃reǵ-
(root)
←
Latin
regionarius
(mention)
←
Latin
regiō
(mention)
←
Latin
-ārius
(mention)