richening

Verb

richen (third-person singular simple present richens, present participle richening, simple past and past participle richened)

1. (transitive) To make or render rich or richer.

   Synonyms:

   enrich, enrichen

2. (intransitive) To become rich or richer; become superior in quality, condition or effectiveness.
3. (intransitive) To gain richness; become heightened or intensified in brilliancy.