Tom Bombadil

[denethorthefirst]

I think it is quite believable that Elrond forgot about Bombadil, they lived in the same region (the north-west of ME) for roughly 6000 years and maybe met once (maybe only shortly) earlier in that time when Bombadil wasn't as reclusive as later. It's also obvious that they have very different Personalities: why should the worldly, active and engaged leader-politician Elrond "remember" some strange eccentric he met sometime maybe 4000 years ago, when he hasn't seen him since and we take in account everything that happened during that time! Another thing: 6000 years may sound old but compared to Gandalf, Saruman, or even Elves like Cirdan, Galadriel and other Exiles Elrond is rather "young"; everything he knows about the creation and cosmology of ea and arda and a large part of the prehistoric history he knows from second hand sources: of course Bombadil is a "strange creature" for him, Elrond is not all-knowing.
Tolkien didn't explain Bombadil because he understood that a believable mythology needs loose ends and inconsistencies (like the real world Greek and Germanic myths that inspired him - they grew over time and don't always fit together, different parts contradict each other, or make.no sense, there are differences and changes in tone, and so on.)
But there is only one logical in-universe explanation for Bombadil: he has to be an unaffiliated Ainu - nothing else makes sense. The real mistery however is Goldberry. Who is the mysterious "River-Woman"? Just an elven Woman that lived by the River sometime during the great journey westward, or maybe an Ainu of Ulmo that dwelled inside the river and mated with one of the passing Elves (like Melian and Thingol) - eventually her partner died and she returned to Valinor leaving her Daughter with Bombadil?

[Tar-Jêx]

Originally Posted by denethorthefirst

The real mystery however is Goldberry. Who is the mysterious "River-Woman"? Just an elven Woman that lived by the River sometime during the great journey westward, or maybe an Ainu of Ulmo that dwelled inside the river and mated with one of the passing Elves (like Melian and Thingol) - eventually her partner died and she returned to Valinor leaving her Daughter with Bombadil?

I think that Goldberry, moreso than Tom, is an entity from outside of the world. She is comparable to a water spirit/nymph from traditional folklore. I don't believe Goldberry was intended to be anything at all. Tom, however, was intended to be something, we just don't know what.