Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Wier
←
German
Wehr
(cognate)
←
English
weir
(cognate)
←
Old High German
wer
(derived)
←
Icelandic
ver
(cognate)
→
Luxembourgish
wieren
(link)