devolve

every headlong stream / Devolves its winding waters to the main.

an accident […] rendered him permanently lame, and therefore unfitted him, in the opinion of his parents, to inherit his father's many titles, which, it was then arranged, should devolve upon his younger brother.

They devolved their whole authority into the hands of the council of sixty.

, Episode 16:

For the nonce he was rather nonplussed but inasmuch as the duty plainly devolved upon him to take some measures on the subject he pondered suitable ways and means during which Stephen repeatedly yawned.

A discussion about politics may devolve into a shouting match.