Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
sílne
←
Proto-Indo-European
*seh₁-
(root)
←
Old Irish
sílne
(inherited)
←
Old Irish
síl
(mention)