To further obfuscate such a crepuscular, tenebrous and umbrageous issue, howcum there is a gloaming but no present verb to gloam? Well, mebbe it existed previously, but several dictionaries I looked at claimed it to be a 'back-formation' from gloaming.
Which Webster's edition says dusk is synonymous with dawn? That is a new one for me.
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www.onelook.com]
And, back to poetry, how many poems can you think of that use the word gloaming?
I got Dorothy Parker's Song in a Minor Key, Swinburne's Nephelidia, Lowell's First Snowfall, and at least two by Frost (Flower Gathering and Asking for Roses).