•  to overcome completely in mind or feeling:
•  to overpower or overcome, especially with superior forces; destroy; crush:
•  to cover or bury beneath a mass of something, as floodwaters, debris, or an avalanche; submerge:
• to load, heap, treat, or address with an overpowering or excessive amount of anything:
•  to overthrow.

 overwhelm. Dictionary.com. Dictionary.com Unabridged. Random House, Inc.http://www.dictionary.com/browse/overwhelm (accessed: March 14, 2016).