a. and sb. Also 5 erron. tricenn-. [ad. L. trīcēnāri-us of, pertaining to, or consisting of thirty, f. trīcēnī thirty each.]

1

  A.  adj. Of or pertaining to thirty; containing, or lasting, thirty days. ? Obs.

2

1655.  Stanley, Hist. Philos., III. (1701), 75/2. After Solon’s time, the Civil year … consisted of Months,… alternately of twenty nine, and thirty days, at Athens, though divers places of Greece … did not for a long time after part with their tricenary Months.

3

1671.  H. M., trans. Erasm. Colloq., 389. Tricenary and yearly Masses.

4

  B.  sb. R. C. Ch. [med.L. tricēnārium, Du Cange.] A series of masses said on thirty consecutive days: cf. TRENTAL.

5

1482.  Monk of Evesham (Arb.), 94. That sche schulde orden to be seyde for me. v. tricennarijs of messys.

6

1911.  A. M. Buchanan, trans. Contempl. Life, xxi. 101. Numerous anniversary Masses are said, and the suffrages for the dead are increased by tricenaries, during which Masses are offered on thirty consecutive days.

7

  So Tricenarious a. (rare0) = tricenary adj.

8

  (In some mod. Dicts. misspelt tricennarious, and confused in form and sense with TRICENNIAL.)

9

1656.  Blount, Glossogr., Tricenarious, of or belonging to thirty.

10

[1836.  Smart, Tricennial, belonging to the number thirty; Tricennarious is less used.

11

1882.  Ogilvie (Annandale), Tricennarious, tricennial; belonging to the term of thirty years.]

12