The inner language is so special and secret, the name Khuzdul for the dwarves doesn’t even seem to appear on their gravestones. Instead, the dwarves mostly speak the human language, which in the screen adaptations is always English. In “The Letters of JRR Tolkien” and a BBC interviewTolkien says he was inspired by Hebrew to create Khuzdul.
So how did Durin end up putting his real name on the tip of his tongue in a heart with Elrond? Well, apparently other races are not forbidden to learn Khuzdul in Middle-earth. Instead, the language is deliberately made complicated to prevent outsiders from learning it, while in rare cases people super close to dwarves end up with that information. inside “Quenta Silmarrillion,” A collection of Middle-earth legends first published after Tolkien’s death, the author writes as follows:
“The Dwarves were unwilling to teach their tongues to people of the alien race; and they used it to make it harsh and complicated, so that those they received in full friendship less still learn it well.”
In an essay titled “Dwarfs and Men” from another Tolkien book, “The Peoples of Middle-earth,” explains further, saying that the dwarves “are not unwilling to teach their own language to men with whom they have special friendships, but that men find it more difficult and slower to learn words that are rejected by her.” create.” It also notes that non-dwarves often end with dwarf words for their language, implying that there is a good reason besides longstanding tradition for dwarves to keep some secrets. their culture.
https://www.slashfilm.com/1044512/the-dwarves-secret-names-in-the-rings-of-power-explained/ Explain the secret name of the dwarf in the rings of power