feblen

Etymology
From, from.

Verb

 * 1) To cause to become feeble or weakened:
 * 2) To cause the defeat of one's opponent(s).
 * 3)  To cause the decline of a nation or organisation.
 * 4)  To ruin, disrupt, or spoil.
 * 5) To become physically or mentally feeble or weakened.