Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
brigge
→
North Frisian
Bröch
(inherited)
→
West Frisian
brêge
(inherited)
→
Old Saxon
bruggia
(cognate)