Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*léyǵʰti
→
Irish
ligh
(inherited)
→
Sanskrit
लेढि
(inherited)
→
Old Irish
ligid
(inherited)