D defs.my
Entry 1 sense Webster, 1913

Whenceforth

· Whence·forth · IPA /ˈ(h)wɛnsˌfɔɹθ/
01 adv. From, or forth from, what or which place; whence.
  1. 1.
    From, or forth from, what or which place; whence.[Obs.]