Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
Áed
←
Proto-Indo-European
*h₂eydʰ-
(root)
←
Old Irish
áed
(mention)
→
English
Egan
(suffix)
→
Irish
Aodh
(inherited)
→
Scottish Gaelic
Aodh
(inherited)
→
Old Irish
Áedacán
(suffix)