youthfulness

noun

Etymology: Etymology tree English youthful Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English youthfulness From youthful + -ness.

1. The vitality characteristic of youth.

   “But it was not the sadness, nor indeed, strictly speaking, the infantileness of the face of Isabel which so singularly impressed him with the idea of her original and changeless youthfulness.”