Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
vaniloquium
←
Latin
vānus
(affix)
←
Latin
loquor
(affix)
←
Latin
-ium
(affix)
→
English
-loquy
(mention)