Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
sinn
←
Old Irish
sinni
(inherited)
→
English
Sinn Féin
(compound)
→
Irish
Sinn Féin
(compound)
→
Irish
againn
(compound)
→
Irish
sinne
(affix)
→
Scottish Gaelic
sinn
(cognate)