Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
wouer
←
German
wahr
(cognate)
←
West Frisian
wier
(cognate)
←
Proto-Germanic
*wēraz
(inherited)
←
Old High German
wār
(inherited)
←
Dutch
waar
(cognate)