Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
-ns
←
Proto-Indo-European
*-onts
(inherited)
→
Latin
-iens
(mention)
→
Latin
-iens
(mention)
→
Latin
-ens
(mention)
→
Latin
-ens
(mention)
→
Latin
-ans
(mention)