Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
tar
←
Proto-Indo-European
*h₂neḱ-
(root)
←
Old Irish
do·icc
(inherited)
←
Old Irish
do·airicc
(mention)
→
Irish
oirthear
(mention)
→
Irish
go dtí
(mention)