Osto

osto is a noun meaning "stronghold" or "fortress" in Quenya. Compare with ost in Sindarin.

Examples:

• Formenos = "Northern Fortress"
• Ostoher = "Fortress Lord"

References

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