Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Occitan
nuèch
←
Proto-Indo-European
*nókʷts
(inherited)
←
Latin
noctem
(inherited)
←
Latin
nox
(mention)
←
Old Occitan
noch
(inherited)
→
Ligurian
néutte
(cognate)