Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
West Frisian
wier
→
Cimbrian
baar
(cognate)
→
West Frisian
wierheid
(affix)
→
Luxembourgish
wouer
(cognate)