propagate
v.v. to spread an idea, a belief, or a plant to more people or places.
v. to spread or promote an idea, theory, or practice widely; in a biological context, to breed or grow specimens from a parent stock.
The gardener learned how to propagate roses from cuttings.
The internet allows misinformation to propagate much faster than traditional media ever could.
While the original theory was developed in a small lab, the researchers worked tirelessly to propagate their findings across the global scientific community to ensure peer validation.
First attested in 1535; from Latin prōpāgātus, perfect passive participle of prōpāgō, see -ate (verb-forming suffix) and -ate (adjective-forming suffix). Participial usage up until Early Modern English.
The verb is transitive when referring to plants or ideas, but can be used intransitively in physics or computing to describe how waves or signals travel.