Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Rouer
â
German
Rohr
(cognate)
â
Old High German
rÅr
(inherited)
â
Dutch
roer
(cognate)