Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*seh₂w-
→
English
sword
(derived)
→
North Frisian
Swērt
(derived)
→
West Frisian
swurd
(derived)