D defs.my
Entry 1 sense Webster, 1913

Thenceforth

/thĕnsfôrth/ · Thence·forth · IPA /ˌðɛnsˈfɔːɹθ/
01 adv. From that time; thereafter.
  1. 1.
    From that time; thereafter.
    “If the salt have lost his savor, wherewith shall it be salted? it is thenceforth good for nothing.” — Matt. v. 13.