Lexical Definition

‎νόθος‎ nóthos (noth'-os) illegitimate ^G:A
of uncertain affinity

bastard.

• a spurious or illegitimate son

Abbott-Smith

** νόθος, -η, -ον, [in LXX: Wi 4:3*;]
a bastard, base born, i.e. born of a slave or concubine: He 12:8.†

Abbott-Smith References

Liddell-Scott-Jones

νόθος-ος, η, ον,

also ος, ον [Refs 3rd c.BC+], bastard, baseborn, i.e. born of a slave or concubine, frequently in [Refs 8th c.BC+]; opposed to γνήσιος, [Refs 8th c.BC+]; ὅδ᾽, εἰ ν. τις, γνησίοις ἴσον σθένει [νόθοςοι καὶ οὐχ υἱοί ἐστε NT.Heb.12.8: \_feminine\_, κούρη νόθοςη 8th c.BC: Ilias Homerus Epicus “Illiad” 13.173. ">NT+8th c.BC+]

__2 at Athens, child of a citizen father and an alien mother, [νόθοςος πρὸς μητρός 1st-2nd c.AD: Plutarchus Biographus et Philosophus “Themistocles” 1. ">Refs 4th c.BC+]
__3 plural, in Egypt, a class of temple-attendants, Wilcken [Refs 3rd c.BC+]
__4 of animals, cross-bred, πρόβατα [Refs 3rd c.BC+]
__II generally, spurious, counterfeit, supposititious, of persons and things, λογισμῷ τινι ν. [Refs 5th c.BC+]; ἀοιδαί Call.[same place]; νόθοςον ἧπαρ ὁ σπλήν [Refs 4th c.BC+]; αἱ ν. πλευραί the false ribs, [Refs 2nd c.AD+]; ν. σάλπιγξ, of a serpent's hiss, [Refs 4th c.AD+]; ν. φέγγος, of the moon, opposed to γνήσιον, of the sun, [Refs 1st c.AD+]meretricious, Peripl.M. [Refs]. adverb -θως insincerely, disingenuously, [LXX+5th c.AD+]
__II.2 of literary works, spurious, [Refs 3rd c.AD+]

_{LSJ Scripture Refs: Heb.12.8}