coarticulate

Verb

 * 1) To articulate two things simultaneously.
 * 2)  To unite to form an articulation (joint)
 * 3)  To assimilate the place of articulation of one speech sound to that of an adjacent speech sound.
 * 4)  To articulate a speech sound at two different places of articulation simultaneously, as in the labiovelar approximant [ w ].