adv. Now rare or Obs. [f. WHITHER adv. + TO prep.; cf. HITHERTO.] To what place, state, result, etc.? to what? whither? whereto?
1549. Coverdale, etc., Erasm. Par. Heb. xii. 16. Whitherto came he? By despisyng of this lyfe, he attained immortalitie.
1592. Breton, Ctess Pembrokes Love, Wks. (Grosart), I. 27/2. All the world may see, From whence we came, and whetherto we must.
1624. Bp. Hall, Art Medit., Medit. Death, Wks. (1625), 129. Whitherto haue tended all thy serious meditations?
1658. W. Burton, Itin. Anton., 125. Whitherto shall we refer that verb?
1751. R. Paltock, P. Wilkins (1884), II. 252. Fearing whitherto it might grow.