Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
treulos
←
German
Treue
(suffix)
←
German
los
(suffix)
→
German
Treulosigkeit
(suffix)
→
Swedish
trolös
(cognate)