nymphet
noun/nɪmˈfɛt/
Etymology From nymph + -et (“diminutive”), first attested 1612. The second sense was popularized by Vladimir Nabokov's 1955 novel Lolita.
1
Obsolete A small nymph.
- Of the nymphets sporting there In Wyrrall, and in Delamere.1612 Michael Drayton, Poly-Olbion I. xi. Argt. 171
2
A sexually attractive girl or young woman.
- […] the fey grace, the elusive, shifty, soul-shattering, insidious charm that separates the nymphet from such coevals of hers […]1955, Vladimir Nabokov, Lolita, 1st American edition, New York, N.Y.: G[eorge] P[almer] Putnam’s Sons, published August 1958, →OCLC, part 1, page 19: