Distress (sunochē). From sunechō. In the N.T. only here and 2Co 2:4. Anguish.
In perplexity (en aporiāi). State of one who is aporos, who has lost his way (a privative and poros). Here only in the N.T. though an old and common word.
For the roaring of the sea (ēchous thalassēs). Our word echo (Latin echo) is this word ēchos, a reverberating sound. Sense of rumour in Luk 4:37.
Billows (salou). Old word salos for the swell of the sea. Here only in the N.T.