hinder

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To be or get in the way of.
2. v. To obstruct or delay the progress of.
3. v. To interfere with action or progress.
4. adj. Variant of hind¹.

Century Dictionary and Cyclopedia

1. Pertaining to the rear; being or coming after; latter: same as hind, which is a modern form, now more common.
2. To go backward.
3. To hold or keep back; prevent from moving or proceeding; stop; interrupt; obstruct; check; impede; retard: as, to hinder one from entering; their march was hindered by fallen trees. It denotes either partial or complete obstruction, according to the context.
4. Synonyms To delay, oppose, prevent, obstruct, embarrass.
5. To be an obstacle or impediment; stand in the way.
6. n. In hand-ball, a ball struck by a player which afterward strikes his opponent; or one with which the server hits his opponent while standing in the ace-line; or one which strikes the opponent, who thus hinders it from reaching the front wall.

Wiktionary

1. v. transitive To make difficult to accomplish; to frustrate, act as obstacle.
2. v. transitive To keep back; to delay or impede.
3. v. transitive, obsolete To cause harm.
4. adj. Of or belonging to that part or end which is in the rear or hind, or which follows.
5. adj. comparative form of hind: more hind
6. n. slang, euphemistic The buttocks.

GNU Webster's 1913

1. adj. Of or belonging to that part or end which is in the rear, or which follows
2. v. To keep back or behind; to prevent from starting or moving forward; to check; to retard; to obstruct; to bring to a full stop; -- often followed by from
3. v. To prevent or embarrass; to debar; to shut out.
4. v. To interpose obstacles or impediments; to be a hindrance.

WordNet 3.0

1. v. be a hindrance or obstacle to
2. adj. located at or near the back of an animal
3. v. hinder or prevent the progress or accomplishment of
4. v. put at a disadvantage