a set of masses said in remembrance of a person for 30 days after his or her death or burial
trental in American English
(ˈtrentl)
noun
Roman Catholic Church
a series of 30 Requiems celebrated one each day for 30 consecutive days
Word origin
[1300–50; ME ‹ ML trentāle, equiv. to VL *trent(a) (for L trīgintā thirty) + L -āle-al2. Cf. OF trentel]This word is first recorded in the period 1300–50. Other words that entered Englishat around the same time include: brace, conversion, discharge, natural, scoop-al is a suffix forming nouns from verbs, usually verbs of French or Latin origin. Otherwords that use the affix -al include: denial, refusal