Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
obtund
←
English
ob-
(affix)
←
English
obtuse
(mention)
←
Proto-Indo-European
*(s)tewd-
(root)
←
Latin
obtundo
(mention)
←
Latin
ob-
(mention)
←
Latin
tundo
(mention)
→
English
obtuse
(mention)
→
English
obtunder
(suffix)
→
English
obtundity
(suffix)