uszlachetniać

Etymology
From.

Verb

 * 1)  to elevate, to ennoble
 * 2)  to enrich, to gentrify, to meliorate, to rarefy, to refine
 * 3)  to refine
 * 4)  to become elevateed, to become ennobled
 * 5)  to become enriched, to become gentrified, to become meliorateed, to become rarefied, to become refined