Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
denken
←
Proto-Germanic
*þankijaną
(inherited)
←
Proto-West Germanic
*þankijan
(inherited)
←
Old High German
denken
(inherited)
→
Luxembourgish
zeréckdenken
(affix)
→
Luxembourgish
Gediechtnes
(mention)