Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
skerp
→
Old English
scearp
(mention)
→
Old Norse
skarpr
(cognate)
→
Saterland Frisian
skärp
(derived)