The title is a noun, a finished event, but the poem opens by turning it back into an action: "breaking up." Nothing in the six short lines tells us who left or why. What we get is a handful of textures (frost, new leather, rabbit fur) and the feeling of a body trying to get through cold weather. The central idea seems to be that a breakup is felt physically, as stiffness, chafing and a need for shelter, long before it can be explained.
The first couplet carries a pun. "Breaking up / the frost on our common hurt" suggests both a relationship ending and ice cracking apart, the way frost is broken underfoot. The phrase "common hurt" is just as double-edged. It means a shared hurt, since the pain belongs to both people, but "common" also hints at something ordinary and everyday. The frost implies the hurt has crusted over into numbness. Breaking it up might be a thaw, or it might be a fresh injury, and the poem doesn't choose. The line break leaves "breaking up" hanging with no subject. Nobody is named as the one doing it, and the only pronoun is "our."
The second couplet is the strangest. "That word go / against new leather" drops the grammatical "goes" for a bare "go," so the sentence stumbles, as though the speech itself doesn't fit. Judging by the imagery, "that word" is the title word, and it chafes like a boot that hasn't been broken in. The echo is hard to miss: new boots have to be broken in, and the poem is full of "breaking." "New" also suggests something unready, a life or a pair of shoes that doesn't yet fit its wearer. "Go against" adds a sense of opposition, as in going against the grain.
Then comes relief of a kind: "fur like a rabbit / cowling my foot." The roughness of leather gives way to soft lining, though the verb is unexpected. A cowl is a hood, and the word has a monkish ring, while "cowling" in other contexts means a cover that shields machinery. Either way the foot is enclosed and protected, maybe also hidden. The pronoun has changed as well. "Our" in the second line becomes "my" in the last, so the shared hurt ends as a private act of keeping warm. The comfort is real, but it comes with withdrawal.
The form supports all this. There is no rhyme, no punctuation and no capital letters, so the lines run together like thoughts not quite finished. The lines are short and uneven, from the clipped three syllables of "that word go" to the six of "the frost on our common hurt," and the stop-start rhythm feels like careful walking on uncertain ground. The sound patterns are subtle but effective. "Hurt," "word," "leather" and "fur" share a dull, r-coloured vowel that gives the poem a low hum of discomfort. The hard c and k sounds in "breaking," "common" and "cowling" crack like the frost, while "rabbit" and "fur" go soft. The poem ends on "foot," a single stressed syllable that lands like a step.
What makes the poem worth reading is how little it explains. It never says "I am sad" or describes an argument. It trusts objects to carry feeling: frost for numbness, stiff leather for awkwardness, fur for the wish to be wrapped up. That compression recalls the economy of haiku, though the poem doesn't follow that form, and it leaves the reader to build the missing story. Its ambiguities, whether the frost is thawing or splintering, whether the fur is comfort or retreat, keep it from settling into a neat message. We are left in the middle of the breakup with one boot on, still unsure of the ground.