Echo vowel

An echo vowel, also known as a synharmonic vowel, is a paragogic vowel that repeats the final vowel in a word in speech. For example, in Chumash, when a word ends with a glottal stop and comes at the end of an intonation unit, the final vowel is repeated after the glottal stop but is whispered and faint, as in [jaʔḁ] for /jaʔ/ "arrow" (written ya).