trigesimaladj.
/trʌɪˈdʒɛsɪməl/ rare.† 1. Thirtieth. Obsolete.
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the world > relative properties > number > specific numbers > eleven to ninety-nine > [adjective] > thirty > thirtieth
thirtietha900
thirtyc1380
trigesimal1637
1637 W. Saltonstall tr. Eusebius Life Constantine 141 The trigesimall yeare of his raigne.
2. loosely. Consisting of thirty (i.e. in quot., days).
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the world > time > period > a day or twenty-four hours > [adjective] > of or lasting specific number of days
novendial1533
triduan1597
quadragesimal1610
hebdomadal1612
quinquagesimal1652
tricenary1655
septuary1700
tridiurnal1828
trigesimal1839
trihemeral1840
ninety-day1859
three-day1890
1839 Fraser's Mag. Aug. 203/1 The upper part may originally have been a crescent, implying monthly... The figure thus connects itself with the monthly trigesimal period.
This entry has not yet been fully updated (first published 1914; most recently modified version published online June 2018).
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adj.1637