the head of the table (partly a loanword from Spanish, mesa, table; see Molina)
Orthographic Variants:
mesaquac
Alonso de Molina:
mesaquac. cabecera de mesa Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 55v. col. 1. Thanks to Joe Campbell for providing the transcription.