ἐνύπνιον G1798
enýpnion · en-oop'-nee-on · Noun Neuter
from ἐν and ὕπνος; something seen in sleep, i.e. a dream (vision in a dream):--dream.
1 Occurrence in the King James Bible
Acts 2:17And it shall come to pass in the last days, saith God, I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams: