beggar

Short definition from Wiktionary

Noun

1. 1
   A person who begs.
2. 2
   A person suffering from extreme poverty.
3. 3
   A mean or wretched person; a scoundrel.
4. 4
   A minced oath for bugger.

Verb

1. 1
   To make a beggar of someone; impoverish.
2. 2
   To exhaust the resources of; to outdo or go beyond.