G3494–νεανίας–neanias

dragged him out of the city, and stoned him, the witnesses throwing off their outer garments and giving them into the care of a young man called Saul.

νεανίου neaniou “of a young man”

and a youth of the name of Eutychus was sitting at the window. This lad, gradually sinking into deep sleep while Paul preached at unusual length, overcome at last by sleep, fell from the second floor and was taken up dead.

νεανίας neanias “young man”

and Paul called one of the Captains and said, "Take this young man to the Tribune, for he has information to give him."

νεανίαν neanian “young man”