Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
lógmar
←
Old Irish
lóg
(affix)
←
Old Irish
-mar
(affix)
→
Irish
luachmhar
(inherited)
→
Irish
lómhar
(inherited)
→
Scottish Gaelic
luachmhor
(inherited)