Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Rou
←
Danish
ro
(cognate)
←
German
Ruhe
(cognate)
←
English
roo
(cognate)
←
Proto-Germanic
*rōwō
(inherited)
←
Old High German
ruowa
(inherited)
←
Icelandic
ró
(cognate)
→
Alemannic German
Ruew
(cognate)
→
Luxembourgish
roueg
(affix)