Soothfast is a 9 letter English word. It's valid Words with friends word worth 14 points.
You can make 185 anagrams from letters in soothfast (afhoosstt).
before 900; Middle English sothfast, Old English sōthfæst. See sooth, fast1
I care not if the pomps you show Be what they soothfast appear, Or if yon realms in sunset glow Be bubbles of the atmosphere.