Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
heretoga
←
Old English
heretoga
(learned borrowing)
←
English
heretog
(doublet)
←
Proto-Indo-European
*ker-
(root)
→
English
heretog
(doublet)
→
Saterland Frisian
Härtsoch
(mention)