Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
heelen
←
German
heilen
(cognate)
←
English
heal
(cognate)
←
Proto-Germanic
*hailijaną
(inherited)
←
Proto-West Germanic
*hailijan
(inherited)
←
Old High German
heilen
(inherited)
←
Dutch
helen
(cognate)
→
Luxembourgish
Heelung
(affix)