Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
Geselligkeit
←
German
gesellig
(suffix)
←
German
keit
(suffix)
←
Middle High German
gesellekeit
(inherited)
←
Middle High German
gesellecheit
(mention)