1390, "class of semi-divine female beings," from O.Fr.
nimphe, from L.
nympha "nymph, bride," from Gk.
nymphe "bride," later "beautiful young woman," then "semi-divine being in the form of a beautiful maiden;" related to L.
nubere "to marry, wed" (see
nuptial). Sub-groups include dryads, hamadryads, naiads, nereids, and oreads. Sense in Eng. of "young woman, girl" is attested from 1584. Meaning "insect stage between larva and adult" is recorded from 1577.
Nymphet "sexually attractive young girl" is from 1955, introduced by Vladimir Nabokov (1899-1977) in his novel "Lolita" to describe alluring (in the eyes of some men) girls age 9 to 14.