Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Danish
brøst
←
Danish
brist
(doublet)
←
Proto-Germanic
*brestuz
(inherited)
←
Old Norse
brestr
(inherited)
→
Danish
brist
(doublet)