Usage: 10 forms in 27 verses
Form Translated As     In Verse(s)
νεανίσ young woman LXX.Exod.2.8LXX.2Kgs.5.4
νεανίδων of young women LXX.Judg.5.8LXX.Ps.68.25
νεανίδα young woman LXX.2Kgs.5.2
νεάνισ young woman LXX.Deut.22.27LXX.Ruth.2.5LXX.1Kgs.1.4LXX.Dan.11.6
νεάνιν young woman LXX.Deut.22.21LXX.Deut.22.24
νεάνιδοσ young woman LXX.Deut.22.19LXX.Deut.22.29LXX.Judg.19.3LXX.Judg.19.4LXX.Judg.19.5LXX.Judg.19.6LXX.Judg.19.8LXX.Judg.19.9
νεάνιδι young woman LXX.Deut.22.20LXX.Deut.22.26LXX.Deut.22.26
νεάνιδεσ young women LXX.Song.1.3LXX.Song.6.8
νεάνιδασ young women LXX.Judg.21.12
νεάνιδα a young LXX.1Kgs.1.2
young woman LXX.1Kgs.1.3

Liddell-Scott-Jones

νεᾶνις (neanis) a young woman G:N-F

νεᾶνις,

Epic dialect and Ionic dialect νεῆνις (contraction νῆνις [Refs 6th c.BC+], ῐδος, , accusative -ιδα[Refs 4th c.BC+], -ιν [Refs 5th c.BC+]:—girl, maiden, [Refs 8th c.BC+]; of a young married woman, [Refs 8th c.BC+]

__II as adjective, youthful, χεῖρες, ἧβαι, [Refs 5th c.BC+]
__II.2 new, βίβλος [LXX+6th c.AD+]

LSJ Scripture Refs: LXX.Exod.2.8