Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ancient Greek
πόθεν
←
Ancient Greek
(suffix)
←
Ancient Greek
θεν
(suffix)
←
Ancient Greek
ποθέν
(mention)
←
Proto-Indo-European
*kʷ-
(root)
←
Proto-Indo-European
*kʷos
(derived)
→
Greek
πουθενά
(mention)
→
Greek
πούθε
(mention)