Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
unachtsam
←
German
un
(prefix)
←
German
achtsam
(prefix)
→
German
Unachtsamkeit
(affix)
→
Swedish
oaktsam
(cognate)