[once] adv [ME ones, fr. gen. of on one] (12c) 1: one time and no more
2: at any one time: under any circumstances: ever
3: at some indefinite time in the past: formerly
4: by one degree of relationship -- once and for all 1: with finality: definitively
2: for the last time
[2]once n (13c): one single time: one time at least -- at once 1: at the same time: simultaneously
2: immediately
3:
[2]both [3]once adj (1691): that once was: former [4]once conj (1761): at the moment when: as soon as