Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
taaschten
←
German
tasten
(cognate)
←
French
tâter
(cognate)
←
Old French
taster
(derived)
←
Middle High German
tasten
(inherited)
→
Luxembourgish
betaaschten
(affix)