soberize

[soh-buh-rahyz]
verb (used without object), so·ber·ized, so·ber·iz·ing.
  1. Archaic. to become sober.
Also especially British, so·ber·ise.

Origin of soberize

First recorded in 1700–10; sober + -ize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018