Pertaining to a word in any language, originally in ancient Greek, with the stress (or an acute accent) on the antepenultimate syllable.(adjective)
A proparoxytone word(noun)
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Use "proparoxytone" in a sentence
"And all hearts were touched and turned to her voice, shining like a young star, shining clearer as the voice intoned the proparoxytone and more faintly as the cadence died."
"As compared with Italian and Spanish, it may be noted that the Provencal has no proparoxytone words, and hence a whole class of words is brought into the two categories possible in Provencal."