What are the origins of the word Tween?

One of Isaac Asimov’s earliest published stories was “Half-Breed,” written in June 1939 and published in 1940. Kids of mixed Terran-Martian parentage were labeled “Tweeny” and they built themselves a “Tweenytown.” This was approximately concurrent with Tolkien’s writing the first chapter of The Fellowship of the Ring (begun in December 1937), where he applied the term “tweens” to young Frodo. Asimov was a huge fan of Tolkien, but in 1939 he could not have known that J.R.R.T. was using the (approximately) same word, and obviously Tolkien would not have heard of Asimov, who wasn’t published until 1940. Coincidence. Besides, “A Long-Expected Party” was written about a year and a half before “Half-Breed” so Tolkien was first by any measure.

Agreed. As Joyce referred to her, “the bustling tweeny-dawn-of-all-works (meed of anthems here we pant!) had not been many jiffies furbishing potlids, doorbrasses, scholars’ applecheeks and linkboy’s metals…"

There is a usage that I like that isn’t that old but applies to me. A person born in the 1960’s is called a Tweener. Not really a Boomer but not Gen X either. If you don’t remember the JFK assassination but do remember Watergate, you’re a Tweener.

That would be my younger sisters born in the 1960s. I was born in late 1959 and have memories from the JFK administration. I fall somewhere in between (heh) the core Baby Boom and your Tweeners. I figure I’m a kid sister to the Boomer generation: same generation, but born a little too late for all the hoopla. I just discovered that my tail end of the baby boom has been named “Generation Jones,” which as a name doesn’t impress me much, but there are significant differences between our situation and the main wave of the Baby Boom. My parents were born squarely in the middle of the “Silent Generation” and my children were born squarely in the middle of the “Millennials,” but my birth is way off on the shoulder of my generation’s road. Generations make for an extremely inexact science.