thrain en · NUM · etymology 1
Etymology
Blend of three + twain.
Meanings
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(humorous, nonstandard, often) Three, as coordinate term to (and used in similar sentences to) twain.
[…] twain - yes, they used old words and proverbs and catch-phrases and slogans when they did not wish to face reality - shall meet, because if the twain, or the thrain, or the quain, or the multain complications of life, and love[…]
1959, Christine Brooke-Rose, The Sycamore Tree:I am torn in twain, thrain, and quatrain![…]
2020 July 14, Eric Darton, Free City, Deep Vellum Publishing, →ISBN:"[The] twain meet—or is that thrain?" "That's brilliant!" I said.
1996, Alexis Page, Three-guy Weekend, Bantam Books for Young Readers, →ISBN:[…] sink me ship, master gunner, sink her, split her in twain—or thrain, if you feel like it. Don't bother about anything else; she's your bird.
2011 11, Stephen Brennan, The Best War Stories Ever Told, Skyhorse Publishing Inc., →ISBN, page 535:"Tis not an omen, but an assassin, Banh." […] "A thing may be twain or thrain at once, my student."
2019 October 15, S. C. Emmett, The Throne of the Five Winds, Orbit, →ISBN:Or, all the churches give up their names and get married in a union organization—the twain (or "thrain") becoming one flesh. None of these things occurred at Pepperell.
1921, Preacher and Homiletic Monthly, page 205: