Haranyë

Haranyë is a calendar term used in the context of the King's Reckoning. It is probably the name of the last year of a century.

Etymology

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In every fourth year, except the last of a century (haranyë)...

J.R.R. Tolkien

The word is obviously Quenya, but of uncertain etymology.

Helge Fauskanger notes that Tolkien's wording does not make clear whether the word describes the "last [year] of a century" or a translation of "century" itself.

The word's entry at Eldamo glosses it as "century".