Obs.–1 [ad. OE. (ʓe)sundfullian, f. ʓesundful sound, prosperous.] intr. To prosper. Also † Soundful adv. [OE. ʓesundfullíce], prosperously. Obs.
a. 1300. E. E. Psalter i. 4. What swa he does sal soundefulle al. Ibid., xliv. 5. Soundful [L. prospere] ga forth.
