Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
wodór
←
Polish
wodoród
(mention)
→
German
Wasserstoff
(cognate)
→
Polish
antywodór
(affix)
→
Polish
węglowodór
(affix)