Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
epen
→
Old English
open
(mention)
→
West Frisian
iepen
(mention)
→
Saterland Frisian
eepen
(inherited)