Adverb
to what end (not comparable)
For what purpose, what for, why
We will never know to what ends he was working.
To what end are you spending so much time reading the newspaper?
They put so much effort into it, but to what end?
O God, the creature knows not to what end Thou hast made Him; teach him, and write in the depths of his soul that the clay must suffer itself to be shaped at the will of the potter. François Fénelon