схвилюватися

1) (про воду) to be choppy (agitated); (злегка) to ripple; (про море) to be rough; to rise in waves, to surge, to billow

2) перен. to be agitated; to be in agitation; (бути у розпачі) to be upset; to become disturbed (worried); to be uneasy; (стривожитися) to be alarmed; (збуджуватися) to get excited; to become nervous