agitar

v. wave, flutter; excite, agitate

v. agitate, discompose

= shake up, stir up, stir, flail, roil.
Ex: This will shake up library managers no end.
Ex: The stuff was diluted there with water to the appearance and consistency of liquid porridge; it was kept tepid with a small charcoal furnace let into the side of the vat, and it was stirred up occasionally with a paddle.
Ex: The article is entitled 'Take 25 branches and stir gently... a recipe for success'.
Ex: The crab's mouth has elongated setae, notably on the maxilla, which it repeatedly flails through the seawater to feed on suspended material.
Ex: Financial markets, which had been roiled Tuesday by a falling dollar and soaring energy prices, recovered some of their losses Wednesday.
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* agitarse = churn.
* agitarse en el viento = rustle.
* agitar una bandera = wave + flag.