Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
reechen
←
German
reichen
(cognate)
←
English
reach
(cognate)
←
Proto-Germanic
*raikijaną
(inherited)
←
Middle High German
reichen
(inherited)
←
Old High German
reichen
(inherited)
←
Old High German
reihhen
(mention)
←
Dutch
reiken
(cognate)
→
Luxembourgish
iwwerreechen
(affix)