Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
sraithchlár
←
Irish
sraith
(affix)
←
Irish
clár
(affix)
←
Proto-Indo-European
*sterh₃-
(root)