Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
rigeo
←
Middle High German
ric
(cognate)
←
Proto-Indo-European
*reyǵ-
(root)
←
Proto-Indo-European
*reyǵ-
(derived)
←
Old Irish
riag
(cognate)