nymphetry en · NOUN
Etymology
From nymphet + -ry.
Meanings
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(nonce-word, uncountable) The state of being a nymphet.
Of the rest, none had any claims to nymphetry except Eva Rosen. Avis was a plump lateral child with hairy legs, while Mona, though handsome in a coarse sensual way and only a year older than my aging mistress, had obviously long ceased to be a nymphet, if she ever had been one.
1955, Vladimir Nabokov, Lolita: