Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
obstruct
←
Proto-Indo-European
*strew-
(root)
←
Latin
obstructus
(mention)
←
Latin
obstruere
(mention)
←
Latin
ob
(mention)
←
Latin
struere
(mention)
→
English
obstructive
(suffix)
→
English
obstructer
(affix)
→
English
deobstruct
(prefix)
→
English
disobstruct
(prefix)