Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
шесть
←
Proto-Slavic
*šestь
(inherited)
→
Avestan
𐬑𐬴𐬎𐬎𐬀𐬱
(cognate)
→
Sanskrit
षष्
(cognate)