trigintennial
Synonym of tricennial, once every thirty yearsSynonym of tricennial, once every thirty years.
Meaning
1 senses(not comparable, uncommon)Synonym of tricennial, once every thirty years.
Origin
From Latin triginta (“thirty”) + -ennial, combining adjectival form of annus (“year”). ComFrom Latin triginta (“thirty”) + -ennial, combining adjectival form of annus (“year”). Compare the actual Latin term tricennium.
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Synonyms
2 synonymstricennialonce every thirty years