Webster's Revised Unabridged Dictionary · 1913

Already

Already ({not transcribed}) , adverb

[All (Old English al) + ready.]

Prior to some specified time, either past, present, or future; by this time; previously.
Joseph was in Egypt already. — Exod. i. 5
I say unto you, that Elias is come already. — Matt. xvii. 12

It has reference to past time, but may be used for a future past; as, when you shall arrive, the business will be already completed, or will have been already completed.