Linguistic puns, riddles, and jokes in LotR, etc.

[Elianna]

littlemanpoet:
Nathan can be short for Nathaniel 'gift of God', or by itself meaning 'gift'. It is a Hebrew name. Nathaniel was one of Jesus' diciples, and Nathan was a prophet during King David's reign. I think what Ardamir meant was that Nathan was a normal name in English-speaking countries.

Anyway, back to LotR:

As I read RotK, I noticed a translation of a name that Tolkien had actually worked into the text when Éowyn/Dernhelm was fighting the Witch-King.

But the helm of her secrecy had fallen from her...

Dernhelm means literally 'secret-helm' or 'helm of secrecy'. I love it! It's not funny per se, but it gets a "ha! isn't that interesting?" from me. It's more like a riddle, not as easy as "the White Mountains of Ered Nimrais."

Have any of you found hidden translations like this?