Final answer:
The most notable sound device in the excerpt is alliteration.
Step-by-step explanation:
The most notable sound device in the excerpt from 'Sea Fever' by John Masefield is alliteration. Alliteration refers to the repetition of similar sounds, usually the initial consonant sounds, in a line of poetry. In this excerpt, the repeated 'w' sound in 'whale's way,' 'wind's,' and 'whetted' creates an auditory effect and adds emphasis to these words.
Learn more about Sound devices in poetry