propagates is a form of:

Propagate



ENGLISH MEANING
verb
1.
(TRANSITIVE) To cause to spread to extend; to impel or continue forward in space; as, to propagate sound or light.
2.
(TRANSITIVE) To cause to continue or multiply by generation, or successive production; -- applied to animals and plants; as, to propagate a breed of horses or sheep; to propagate a species of fruit tree.
3.
(TRANSITIVE) To spread from person to person; to extend the knowledge of; to originate and spread; to carry from place to place; to disseminate; as, to propagate a story or report; to propagate the Christian religion.
4.
(INTRANSITIVE) To have young or issue; to be produced or multiplied by generation, or by new shoots or plants; as, rabbits propagate rapidly.
1.
To multiply, to increase
2.
To generate, to produce