sobriety; the quality of being sober or moderate in the indulgence of appetite; moderation in the use of strong drink ...1303 obs.
from Old French sobreté, soberté, from Latin sōbrius (sober) + -ty
FIRST DOCUMENTED USE
1303 - see EXAMPLE below
"...Or. þou ledyst. any man to þe ale
And madest hym drunk with troteuale,
And he solde hys þyng to þe
More þan he wulde yn soberte,
Hyt semeþ þou art a gylour,
And coueytous, and trechour..."
From: Robert of Brunne's "Handlyng Synne"
- Robert Mannyng