Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
lough
←
Proto-Celtic
*lokus
(derived)
←
English
loch
(doublet)
←
Irish
loch
(borrowed)
←
Proto-Indo-European
*lókus
(derived)
←
Old Irish
loch
(derived)
→
English
loch
(doublet)
→
English
loch
(link)
→
English
loch
(link)