Here's how it works:
* Meter: Poetry often follows specific metrical patterns (like iambic pentameter). If the line needs a two-syllable word, "breathes" can be pronounced as "breaths" to fit the rhythm.
* Rhyme: Poets may stretch the pronunciation of words to achieve a perfect rhyme. "Breathes" can be pronounced as "breaths" to rhyme with words like "deaths" or "wreaths."
Example:
In the following line from Shakespeare's "Sonnet 116":
> "Love alters not with his brief hours and weeks, But bears it out even to the edge of doom."
The word "But" is pronounced as two syllables, "But" (as in "boot"), to fit the iambic pentameter rhythm. Similarly, "breathes" could be pronounced as "breaths" in a poetic context to achieve a similar effect.
However:
* Context is key: The context of the poem and the intended effect will determine whether "breathes" should be pronounced as one or two syllables.
* Standard pronunciation: In general, "breathes" is pronounced as one syllable in everyday speech.
Ultimately, the decision of whether to pronounce "breathes" as one or two syllables in a poem rests with the poet and the poem's specific needs.