Soothfast /(?)/

Sooth·fast

Soothfast

a.
  1. Firmly fixed in, or founded upon, the thruth; true; genuine; real; also, truthful; faithful. [Archaic]
    Why do not you . . . bear leal and soothfast evidence in her behalf, as ye may with a clear conscience!

Soothfast

adv.
  1. Soothly; really; in fact. [Archaic]
    I care not if the pomps you show Be what they soothfast appear.