Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
wässeren
←
German
wässern
(cognate)
←
Middle High German
wezzern
(inherited)
→
Luxembourgish
bewässeren
(affix)
→
Luxembourgish
entwässeren
(affix)