The “m” sounds transform into “n” sounds throughout these lines. The “n” is both hidden in the middle of words and prominent as alliteration, and tolls on our senses like the rolling thunder, building the description of this particular mourner and pursuing him to the end of the stanza (much like the dogs pursuing and attacking Actaeon). “N” returns again in “own” and “hounds” in the final lines of the stanza.