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decennary

/dɪˈsɛnəɹi/ noun

Latin root: decennis Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about decennary at Wordnik → Where our words come from →

  1. A period of 10 years.

Origin

From Latin decennis (“decennial, of ten years”) + -ary.

From Wiktionary, via Kaikki.org (CC BY-SA)