adv

• (formal, also law) Up to this or that time.
  "All men att the begynnynge⸝ ſett forth goode wyne⸝ And when men be dronke⸝ then thatt which is worſſe: Butt thou haſt kept backe the goode wyne hetherto."
• (chiefly archaic or literary)
  "Hither to ſhalt thou come, but no further, and here ſhalt thou laye downe thy proude and hye wawes.^([sic – meaning waves])"
• (chiefly archaic or literary)
  "The great man dovvne, you marke his fauourite flyes, / The poore aduanc'd, makes friends of enemies, / And hetherto doth loue on fortune tend, / For vvho not needes, ſhall neuer lacke a friend, / And vvho in vvant a hollovv friend doth try, / Directly ſeaſons him his enemy."
• (obsolete) Synonym of hereto (“regarding this subject; to achieve this result; to this end”).
  "And the eſpeciall intent of this meeting is, to receive our Biſhops directions for the adminiſtration of the Sacraments and Preaching, as his Articles informe us. Hitherto, if I can but hold me by my text, I hope not to fall into impertinencies."

adj

• (archaic) Existing or occurring before now; former, preceding, previous.
  "At the same time, then, that the categorical imperative can enjoin nothing without liability to exception but disinterested obedience to itself, it will have no lack of definite content. The particular duties which it enjoins will at least be all those in the practice of which, according to the hitherto experience of men, some progress is made towards the fulfilment of man's capabilities, or some condition necessary to that progress is satisfied."