Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
obsidional
←
Middle English
obsidional
(inherited)
←
Latin
obsidiōnālis
(derived)
←
Latin
obsidiō
(mention)
←
Latin
obsideō
(mention)