Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Reider
←
German
Reiter
(cognate)
←
English
rider
(cognate)
←
Middle High German
rīter
(inherited)
←
Old High German
rītāri
(inherited)
←
Icelandic
riddari
(cognate)
←
Luxembourgish
reiden
(affix)
←
Luxembourgish
-er
(affix)
←
Dutch
rijder
(cognate)