Clog
Part of speech: verb
Definition: To block or slow passage through (often with 'up).
Part of speech: noun
Definition: A type of shoe with an inflexible, often wooden sole and an open heel. A blockage.
Sabot
Part of speech: noun
Definition: A carrier around projectile(s) in firearms, cannons and artillery which holds the projectile in precision within the barrel.A wooden shoe worn in various European countries.