Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Gléck
←
German
Glück
(cognate)
←
Middle Low German
gelücke
(derived)
←
Dutch
geluk
(cognate)
→
Luxembourgish
glécklech
(suffix)
→
Luxembourgish
Ongléck
(prefix)