Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
lánfhada
←
Irish
lán
(affix)
←
Irish
fada
(affix)
←
Proto-Indo-European
*pleh₁-
(root)