sext Meaning, Definition & Usage

  1. noun the fourth of the seven canonical hours; about noon

WordNet

Sext noun
Etymology
L. sexta, fem. of sextus sixtt, fr. sex six: cf. F. sexte.
Definitions
  1. (R.C.Ch.) (a) The office for the sixth canonical hour, being a part of the Breviary. (b) The sixth book of the decretals, added by Pope Boniface VIII.

Webster 1913