enrichen

• (Received Pronunciation) IPA^(key): /ɪnˈɹɪt͡ʃən/, /ɛnˈɹɪt͡ʃən/
• Rhymes: -ɪtʃən

enrichen (third-person singular simple present enrichens, present participle enrichening, simple past and past participle enrichened)

1. (transitive) To enrich; to make richer.
   • 1977, George Lear, Lynn S. Mosher, Motorcycle mechanics, page 171:

     There are several approaches that carburetor manufacturers take for enrichening the air-fuel mixture for easy starting.

• enrichener