Answer:
Grim and greedy ➡️Alliteration
The whale-path➡️Kenning
They drive their keels o'er the darkling wave ➡️Synecdoche
the Ruler-of-Man ➡️Epithet
Step-by-step explanation:
I have matched them correctly.
Alliteration refers to the occurence of same sounds or same letters in a sentence.
Kenning is actually a figure of speech which gives an expression (poetic in nature) that usually refers to a person or thing.
Synecdoche is a figure of speech that talks of something as a whole or vice versa.
Epithet is known as a phrase or word that usually expresses the characteristic of the person or thing