TLAECAHUĪLLŌ-TL shade / sombra (de un árbol) (T) [(4)Tp.211,239]. M has eucauillotl ‘shade,’ reflexive ecauilia ‘to put oneself in the shade,’ and transitive ecauillotia ‘to shade something’. In T the vowel of the prefix TLA- has idiosyncratically assimilated to the vowel of the stem. See ECAHUĪL-LI, -YŌ. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 259.