Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Belarusian
сем
←
Proto-Indo-European
*septḿ̥
(derived)
←
Proto-Slavic
*sedmь
(inherited)
←
Proto-Slavic
*setь
(mention)
→
Belarusian
семдзесят
(compound)
→
Belarusian
сямнаццаць
(compound)
→
Latvian
septiņi
(cognate)