Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle High German
-ære
→
German
-er
(inherited)
→
German
-er
(inherited)
→
Yiddish
־ער
(inherited)
→
Yiddish
־ער
(inherited)