Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
pycno-
←
Ancient Greek
πυκνός
(derived)
→
English
pycnometer
(affix)
→
English
pycnogenol
(prefix)
→
English
isopycnal
(mention)
→
English
pycnodont
(affix)
→
English
pycnidium
(mention)