I don't see what youngness has to do with it.
"Castle Richmond"
Anthony Trollope
But he too sat all eyes; for anyhow he might in passing get a glimpse of the place containing those cunning little bits of youngness, the Twinkler sisters, and even with any luck a glimpse of their very selves.
"Christopher and Columbus"
Countess Elizabeth Von Arnim
Since flew the vapoury twos and threes From western pile to eastern rack; As on from peaks of Pyrenees To Graians; youngness ruled the track.
"The Complete Project Gutenberg Works of George Meredith"
George Meredith