Verb

(head)

(proliferate)

Verb

(proliferat)

To increase in number or spread rapidly.

The flowers proliferated rapidly all spring.

* {{quote-book, year=2006, author=

, title=Internal Combustion , chapter=2 citation , passage=But through the oligopoly, charcoal fuel proliferated throughout London's trades and industries.  By the 1200s, brewers and bakers, tilemakers, glassblowers, pottery producers, and a range of other craftsmen all became hour-to-hour consumers of charcoal.}}