Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
seaþ
←
Proto-Germanic
*sauþaz
(inherited)
←
Old Norse
seyðr
(cognate)
←
Old Frisian
sāth
(cognate)