This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
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v. To reduce to poverty; make poor.

v. To deprive of natural richness or strength: impoverish the soil by overuse. See Synonyms at deplete.

v. Make poor.

v. Weaken in quality; deprive of some strength or richness.

v. Become poor.

v. To make poor; to reduce to poverty or indigence.

v. To exhaust the strength, richness, or fertility of; to make sterile.

To make poor; reduce to poverty or indigence.

To make poor in quality or character; reduce in vigor, capacity, productiveness, etc.; cause to deteriorate.

v. take away

v. make poor

"Current global economic turmoil is unlikely to "impoverish" South"

enrich   

impoverished    impoverishes    impoverishing   

exhaust   

impoverished    impoverishing    impoverisher    impoverishment   

ruin   

needy    wealthy    destitute    defenceless    rural    unhappy    oppress    friendless    forlorn    vulnerable