Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*-as
→
English
-'s
(inherited)
→
Old English
-es
(inherited)
→
Dutch
-s
(inherited)
→
Old Saxon
-es
(inherited)