whereuntil

Until what; until which.

Adverb

  1. Until what; until which.
    • O Lord, sir, the parties themselves, the actors, sir, will show whereuntil it doth amount […] - c. 1595–1596 (date written), William Shakespeare, “Loues Labour’s Lost”, in Mr. William Shakespeares Comedies, Histories, &...

Origin

From where- + until.