The flowers proliferated rapidly all spring.
An example of proliferate is when one product gives rise to many copycat products, which are ever-increasing in number.
Fears that nuclear weapons might proliferate.
Origin of proliferate
- Back-formation from proliferation the act of proliferating from French prolifération from prolifère procreative Latin prōlēs prōl- offspring proliferous Latin -fer -fer
From American Heritage Dictionary of the English Language, 5th Edition