Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
sad
←
Proto-Germanic
*sadaz
(inherited)
←
Proto-Indo-European
*seh₂-
(derived)
→
Old English
sæd
(cognate)
→
Old High German
sat
(cognate)
→
Old Norse
saðr
(cognate)