“Thee” and “thou” in “The Lord of the Rings”

[Aiwendil]

Hmm, maybe this is what I was thinking of, referring to the dialogue between Hurin and Morgoth:

As the speeches were typed they were set entirely in the second person singular, 'thou wert', 'knowest thou', etc.; but my father went through it changing every 'thou' and 'thee' to 'you', and the equivalent verb-forms – and changing 'Knowest thou' to 'Do you know' rather than 'Know you' (also 'puissant' to 'mighty'). In this form, of course, the text was printed in Unfinished Tales.

The dialogues with Glaurung and Gurthang originate from a different text (NE, as Christopher calls it), so perhaps they were changed in the interest of stylistic consistency.

I could have sworn I read something else about "thou" and "you" in the Narn, but if so I can't find it.