Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle High German
zuo
→
German
zu
(inherited)
→
German
zurück
(mention)
→
Luxembourgish
zu
(inherited)
→
Luxembourgish
zou
(inherited)