The Collaborative International Dictionary
Soothfastness
Soothfast \Sooth"fast`\, a. [Sooth + fast, that is, fast or firm
with respect to truth.]
Firmly fixed in, or founded upon, the thruth; true; genuine;
real; also, truthful; faithful. [Archaic] --
Sooth"fast`ness, n. [Archaic] ``In very soothfastness.''
--Chaucer.
Why do not you . . . bear leal and soothfast evidence
in her behalf, as ye may with a clear conscience!
--Sir
W. Scott.
Wiktionary
soothfastness
n. truth; honesty; veracity