Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
forc
←
Scottish Gaelic
forca
(doublet)
←
Latin
furca
(derived)
←
Old Irish
forc
(inherited)
→
Scottish Gaelic
forca
(doublet)