WHEREIN
Where*in", adv.

1. In which; in which place, thing, time, respect, or the like; — used relatively. Her clothes wherein she was clad. Chaucer. There are times wherein a man ought to be cautious as well as innocent. Swift.

2. In what; — used interrogatively. Yet ye say, Wherein have we wearied him! Mal. ii. 17.

WHEREINTO
Where`in*to", adv.

1. Into which; — used relatively.
Where is that palace whereinto foul things Sometimes intrude not
Shak.
The brook, whereinto he loved to look. Emerson.

2. Into what; — used interrogatively.

WHERENESS
Where"ness, n.

Defn: The quality or state of having a place; ubiety; situation;
position. [R.]
A point hath no dimensions, but only a whereness, and is next to
nothing. Grew.

WHEREOF
Where*of", adv.

1. Of which; of whom; formerly, also, with which; — used relatively.
I do not find the certain numbers whereof their armies did consist.
Sir J. Davies.
Let it work like Borgias' wine, Whereof his sire, the pope, was
poisoned. Marlowe.
Edward's seven sons, whereof thyself art one. Shak.