Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
εννοσσεύσουσι will nest LXX.Ps.104.17
εννοσσεύουσα nesting LXX.Jer.22.23

Liddell-Scott-Jones

ἐννοσσεύω, ἐννεοσσεύω (ennosseuō, enneosseuō) to nest G:V

ἐννοσσεύω, ἐννεοσσεύω,

Attic dialect ἐννεοττεύω, later ἐννοσσεύω [LXX]:— make a nest in a place, ἔν τινι [Refs 5th c.BC+]; as etymology of νόσος, [Refs 1st c.AD+]:—middle, [Refs 1st c.BC+]

__II c.accusative, hatch as in a nest, ἔρωτα [Refs 5th c.BC+]:—passive, to be hatched, ἐπιθυμίαι ἐννενεοττευμέναι [Refs 5th c.BC+]

LSJ Scripture Refs: LXX.Jer.22.23