TETZĀHU(I) to condense, thicken, congeal / queda espeso, se espesa (T) [(1)Tp.226]. This is synonymous with M's intransitive tetzaua and contrasts with TĒTZĀHUIĀ 'to be beset by foreboding; to augur ill for someone.' Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 236.