Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
trzeba
←
Proto-Slavic
*terba
(inherited)
→
Czech
třeba
(cognate)
→
Polish
trzebucha
(affix)
→
Polish
trzebula
(affix)
→
Polish
trza
(mention)
→
Slovak
treba
(cognate)