Mîr

mîr means "jewel" in Quenya and Sindarin. In Quenya alone, mîr is a cognate of mírë, which also means "jewel".

Examples:

• Míriel = "Maiden of the Jeweled Garland" (Quenya)
• Boromir = "Faithful Jewel" (Sindarin)

References

• The Languages of Tolkien's Middle-earth by Ruth S. Noel
• Quenya Corpus Wordlist edited by Helge Kåre Fauskanger