Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
rietas
←
Proto-Finnic
*reet'as
(inherited)
←
Ingrian
retu
(cognate)
←
Karelian
rietta
(cognate)
←
Veps
redu
(cognate)
→
Finnish
rietastella
(suffix)
→
Finnish
riettaasti
(affix)
→
Finnish
riettaus
(affix)