demostrate

As a verb evidentiate is

to provide evidence, especially in order to support a claim, theory etc.

As a verb prove is

.

As a noun show is

show, spectacle.

Demostrate is likely misspelled.

Demostrate has no English definition.

As a verb illustrate is

to shed light upon; to illuminate.

Demostrate is likely misspelled.

Demostrate has no English definition.

As a noun demo is

a demonstration or visual explanation.

As a verb demo is

to record a demo version of a song, usually not intended for commercial release.

As a verb agitate is

to move with a violent, irregular action; as, the wind agitates the sea; to agitate water in a vessel.