Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
fyrkant
←
Danish
firkant
(cognate)
←
Norwegian
firkant
(cognate)
←
Swedish
fyra
(affix)
←
Swedish
kant
(affix)
→
Swedish
fyrkantig
(suffix)