to start doing something suddenly and energetically, often without stopping to think
Українсько-англійський словник
ну́рт (-та) m current, running stream; whirlpool; ну́рта (-ти) f gulf, abyss precipice; нуртува́ти (-у́ю, -у́єш) I vi to wash away (as running water does); to dive into , penetrate, to gain ground.