Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Lithuanian
septyni
←
Old Church Slavonic
седмь
(cognate)
←
Ancient Greek
ἑπτά
(cognate)
←
Proto-Balto-Slavic
*septin
(inherited)
←
Proto-Indo-European
*septḿ̥
(inherited)
←
Latin
septem
(cognate)
←
Latvian
septiņi
(cognate)
←
Sanskrit
सप्तन्
(cognate)
→
Latgalian
septeni
(cognate)
→
Sanskrit
सप्तन्
(cognate)