Are the Nahuatl words for 'heart' (yollotl) and 'life' (yoli) really derived from a root meaning 'round movement'? Is the Nahuatl words meaning 'truth' (nelli, neltiliztli) really derived from the word for 'root' (nelhuatl) or 'foundation, origin' (nelhuayotl)? Hear my talk tomorrow and find out.