Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
dearc
←
Old Irish
derc
(inherited)
→
Scottish Gaelic
fìon-dearc
(compound)
→
Scottish Gaelic
dearc-luachrach
(compound)
→
Scottish Gaelic
dearcag
(suffix)