stedfastly

• steadfastly

From Middle English stedfastlī (“resolutely, unwavering, completely, utterly, motionlessly, firmly”), equivalent of stedfast +‎ -ly

stedfastly (comparative more stedfastly, superlative most stedfastly)

1. In a steadfast manner; firmly; with conviction; resolutely
   • 1905, Booker T. Washington, “A Man About Whom the World Should Know”, in Independent:

     … and having clearly perceived his duty, he has pursued it stedfastly in spite of opposition or adverse criticism.

   • 2011, David A.Clary, George Washington's First War, Simon & Schuster, →ISBN:

     “He told Washington that the Indians kept stedfastly attached to our interest.”

• stedfastness