Synonym of DEBILITATE

Weaken : make or become weaker in power, resolve, or physical strength.
Attack : take aggressive military action against (a place or enemy forces) with weapons or armed force.
Surmount : overcome (a difficulty or obstacle).
Destroy : end the existence of (something) by damaging or attacking it.
Debilitate : make (someone) very weak and infirm.

Synonym of Debilitate is Weaken