impoverished

adj

1. Reduced to poverty.
2. Having lost a component, an ingredient, a faculty or a feature; rendered poor in something; depleted.

   “English has an impoverished inflectional system.”

   “[I]t was out of print for 28 years, before an edition (now rare) was published in 1960, impoverished by having all citations removed.”

verb

1. (form-of, participle, past)simple past and past participle of impoverish