What's the difference between unoil and until?

Unoil

Definition:

• (v. t.) To remove the oil from.

Example Sentences:

• (1) Ashy skin.” White sediment on the surface of brown skin that has gone unoiled for too long.

Until

Definition:

• (prep.) To; unto; towards; -- used of material objects.
• (prep.) To; up to; till; before; -- used of time; as, he staid until evening; he will not come back until the end of the month.
• (conj.) As far as; to the place or degree that; especially, up to the time that; till. See Till, conj.

Example Sentences: