Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
tricies
←
Ancient Greek
τριάκοντα
(cognate)
←
Proto-Indo-European
*tri(d)ḱomt
(inherited)
←
Latin
trīgintā
(mention)
←
Latin
-iēs
(affix)
←
Sanskrit
त्रिंशत्
(cognate)