Víressë was the name for the month of the year (asta) that followed the month Súlimë and preceded the month Lótessë. It was the fourth month in the King's Reckoning and the Stewards' Reckoning; in the latter calendar, it was preceded by the feast-day of Tuilérë. After the introduction of New Reckoning, Víressë became the first month.
Víressë was approximately equivalent to Astron (though in fact running from modern 23 March and 21 April in the King's Reckoning or 24 March and 22 April in the Stewards' Reckoning).
This Quenya name is related to words such as virya "fresh" and perhaps derives from an Elvish root having to do with freshness or youth. Víressë was the Quenya name inherited from Númenor and traditionally used by the Westron-speaking peoples. The Dúnedain themselves however used the Sindarin name of the month, Gwirith.