to become thick; or, for cloth to become tightly packed; or, a fence or hedge to become thick (see Molina)
Orthographic Variants:
tilaua
Alonso de Molina:
tilaua. nitla. (pret. onitlatilauh.) hazer grueso algo, o espessar y tupir bien la manta, o el seto. &c. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 113r. col. 1. Thanks to Joe Campbell for providing the transcription.