the addition of a sound or group of sounds at the end of a word, as in the nonstandard pronunciation of height as height-th or once as once-t.
Origin: 1650–60; < LL paragōgē addition to a word, lengthening of a word < Gk paragōg a leading by, alteration, change, deriv. of parágein to lead by, past. See para-1, -agogue
[par-uh-goh-jee] 
əˈgoʊ