Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
zou
←
Proto-Germanic
*tō
(inherited)
←
Middle High German
zuo
(inherited)
←
Old High German
zuo
(inherited)
→
Luxembourgish
zu
(mention)
→
Luxembourgish
ze
(mention)
→
Luxembourgish
zoumaachen
(affix)
→
Luxembourgish
dozou
(compound)
→
Luxembourgish
zouen
(mention)