Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
swart
→
Old English
sweart
(cognate)
→
North Frisian
suart
(inherited)
→
North Frisian
suurt
(inherited)
→
West Frisian
swart
(inherited)
→
Saterland Frisian
swot
(inherited)