Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
sgrath
←
Irish
scrath
(cognate)
←
Old Irish
scaraid
(cognate)
→
Scottish Gaelic
sgrathail
(affix)