Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
āge
→
North Frisian
uug
(inherited)
→
West Frisian
each
(inherited)
→
Old Saxon
oga
(cognate)
→
Saterland Frisian
Ooge
(derived)