obturate

Verb (transitive)

ob=tu=rate

WORDNET DICTIONARY

obturate(v = verb.contact) block, close up, impede, jam, obstruct, occlude - block passage through; "obstruct the path"

is one way to hinder, impede

Derived form noun obturator₁

Sample sentences:
Somebody ----s something
Something ----s something

obturate, v. t. [L. obturatus; p.p. of obturare.].

To stop or close, as an opening; [Webster 1913 Suppl.]