Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
-estre
←
Old English
-ere
(mention)
←
Proto-Germanic
*-istrijǭ
(inherited)
←
Proto-Germanic
*-astrijǭ
(mention)
←
Proto-Germanic
*-ārijaz
(mention)
→
English
lobster
(mention)
→
English
lobster
(mention)
→
English
-ster
(inherited)
→
Old English
loppestre
(mention)
→
Old English
loppestre
(mention)
→
Old English
hoppestre
(affix)
→
Old English
wæpnwifestre
(mention)
→
Old English
bepæcestre
(affix)
→
Dutch
-ster
(cognate)