trental

Definitions

1. A set of 30 requiem masses, said once a day for a month or all in one day.
2. The payment for this service.
3. Synonym of triacontad, any set of thirty things.
   figuratively, obsolete, rare
4. Synonym of elegy, any funeral or funereal song or poem.
   figuratively, obsolete
5. Synonym of month's mind, the commemorative service held on the 30th day after burial.
   archaic

Examples

“Trentals seyde he, deliueren fro penaunce Hir freendes soules.”

“their trentals and their shrifts”

CEFR level