truly doubly articulated labial-velars include the stops and the nasal . to pronounce them, one must attempt to say the velar consonants but then close their lips for the bilabial component, and then release the lips. while 90% of the occlusion overlaps, the onset of the velar occurs slightly before that of the labial, and the release of the labial occurs slightly after that of the velar so the preceding vowel sounds as if it were followed by a velar, and the following vowel sounds as if it were preceded by a labial. the order of the letters in and is therefore not arbitrary but motivated by the phonetic details of the sounds.