English edit

Etymology edit

From Middle English sothefastly, soþfasstlike, soðfæstlice, from Old English sōþfæstlīċe, equivalent to soothfast +‎ -ly.

Adverb edit

soothfastly (comparative more soothfastly, superlative most soothfastly)

  1. (archaic) Actually; truthfully; honestly.
    • 2012, Evelyn Underhill, The Cloud of Unknowing:
      [] —insomuch that thou or another, for such onehead that feeleth the perfection of this work, may soothfastly by witness of Scripture be called a God— []
    • 2013, originally written 1410-1420, Julian of Norwich, The Showings of Divine Love:
      And notwithstanding all this, I saw soothfastly that our Lord was never wroth, nor ever shall be.