|occurring at the beginning of a word or syllable like the (k) sound of kite, chasm, or quay|
|articulation accompanied by an audible puff of breath, as in the h-sound of how or in the release of initial stops, as in the k-sound of key|
|1.||denoting, relating to, or resembling an abnormal outgrowth|
|2.||uselessly added; not essential; superfluous|
|3.||denoting or relating to a speech sound or letter inserted into a word without etymological justification, such as the b in nimble|
|[C17: from Latin excrēscēns, from excrēscere, from crēscere to grow]|
excrescent ex·cres·cent (ĭk-skrěs'ənt)
Growing out abnormally, excessively, or superfluously.