diversify
verb
[ dʌɪˈvəːsɪfʌɪ ]
• make or become more diverse or varied.
• "the trilobites diversified into a great number of species"
Origin:
late Middle English (in the sense ‘show diversity’): via Old French from medieval Latin diversificare ‘make dissimilar’, from Latin diversus, past participle of divertere (see divert).