Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Käscht
←
Latin
castanea
(derived)
→
Cimbrian
khest
(cognate)
→
Luxembourgish
Käschtebam
(compound)