noun Roman Catholic Church.
a series of 30 Requiems celebrated one each day for 30 consecutive days.
Origin of trental
1300–50; Middle English < Medieval Latin trentāle, equivalent to Vulgar Latin *trent(a) (for Latin trīgintā thirty) + Latin -āle -al2. Cf. Old French trentel
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019