heretofore
adverb,
formal:
before now. "diseases that heretofore were usually confined to rural areas"
whence
formalarchaic
adverb: from what place or source.
"whence does Parliament derive this power?"
adverb: from which; from where.
"the Ural mountains, whence the ore is procured"
whereof
adverb,
formal:
of what or which."I know whereof I speak"
wherefore
archaic
adverb: for what reason.
"she took an ill turn, but wherefore I cannot say"
adverb & conjunction: as a result of which.
"truly he cared for me, wherefore I title him with all respect"