D defs.my
Entry 2 senses Webster, 1913

Impoverish

/ĭmˌ-päv'-rĭsh/ · Im·pov·er·ish · IPA /ɪmˈpɒv(ə)ɹɪʃ/
01 v. t. To make poor; to reduce to poverty or indigence; as, misfortune and disease impoverish families.
imp. & p. p. Impoverished; p. pr. & vb. n. Impoverishing
  1. 1.
    To make poor; to reduce to poverty or indigence; as, misfortune and disease impoverish families.
  2. 2.
    To exhaust the strength, richness, or fertility of; to make sterile; as, to impoverish land.