Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Japanese
ケルン
←
German
Köln
(borrowed)
←
Japanese
コロン
(doublet)
→
Japanese
コロン
(doublet)
→
Japanese
コローニュ
(doublet)
→
Japanese
コローニェ
(doublet)