Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
ćma
←
Czech
tma
(cognate)
←
Proto-Slavic
*tьma
(inherited)
→
Czech
tma
(cognate)
→
Polish
ćmok
(mention)
→
Polish
Ćmak
(mention)
→
Polish
ćmi
(affix)