Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
loscann
←
Scottish Gaelic
losgann
(cognate)
←
Old Irish
loiscend
(inherited)
→
Irish
loscánta
(affix)
→
Scottish Gaelic
losgann
(cognate)