Answer:
Alliteration.
Step-by-step explanation:
Alliteration is a literary technique which involves the repetition of the same consonant in neighboring words. As you can see in the line above, the consonant f is repeated in words fain, fell, and faring, thus creating alliteration.
Caesura is a pause within a line of poetry.
Enjambment happens when the poet's thought doesn't end with one line but rather extends into the next one.
Synecdoche means that a part represents the whole and vice versa like when you use the singular word head to refer to a number of cattle.