puppyhood

noun

1. (countable, uncountable)The state of being a puppy (young dog).

   “"The snake," I whispered, feeling very frightened at what had become of our dog, for we were devoted to him, having brought him up from his puppyhood.”

2. (broadly, countable, uncountable)Youth and adolescence, especially that of a conceited and impertinent young man.

   “During the four years since his puppyhood he had lived the life of a sated aristocrat; he had a fine pride in himself, was even a trifle egotistical, as country gentlemen sometimes become because of their insular situation.”