Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
pìos
←
Gaulish
*pettyā
(derived)
←
Proto-Celtic
*kʷezdis
(derived)
←
Middle English
pece
(borrowed)
←
Old French
piece
(derived)
←
Scottish Gaelic
cuid
(doublet)
→
Scottish Gaelic
cuid
(doublet)