Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
tęchnąć
←
Proto-Slavic
*tǫchnǫti
(inherited)
→
Polish
zatęchnąć
(affix)
→
Polish
stęchnąć
(prefix)
→
Russian
тухлый
(mention)