Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
oe
←
Danish
ø
(borrowed)
←
English
ea
(doublet)
←
Scottish Gaelic
ogha
(borrowed)
←
Swedish
ö
(borrowed)
→
Norwegian Bokmål
øy
(mention)