Definition of antepenult
: the third syllable of a word counting from the end (such as cu in accumulate)
antepenultimateplay \-pi-ˈnəl-tə-mət\ adjective or noun
Origin and Etymology of antepenult
Late Latin antepaenultima, feminine of antepaenultimus preceding the next to last, from Latin ante- + paenultimus penultimate
First Known Use: circa 1620
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