Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
λάβρω fierce LXX.Job.38.25
λάβρου fierce LXX.Job.38.34
λάβροσ a fierce LXX.Prov.28.3

Liddell-Scott-Jones

λάβρος (labros) fierce G:A

λάβρος, ον

(also α, ον [Refs 1st c.AD+]:

__I in [Refs 8th c.BC+] only of wind and water, furious, boisterous, Ζέφυρος λάβρος ἐπαιγίζων [Refs 8th c.BC+]; καπνός, σέλας, [Refs 5th c.BC+]; λάβρον αὐχέν᾽, of the Hellespont personified, [Refs 5th c.BC+]; simply, huge, mighty, λίθος [Refs 5th c.BC+]; ὕδατα λαβρότερα, explained by ἀθροώτερα, [Refs 4th c.BC+]: neuter as adverb, λάβρον ἐπαιγίζων.. Ἔρως [Refs]
__II after [Refs 8th c.BC+], of men, boisterous, turbulent, especiallyin talking, hasty, [Refs 6th c.BC+]
__II.2 fierce, δράκοντος λαβρόταται γένυες [Refs 5th c.BC+]; violent, impetuous, λ. πρὸς τὴν ἐπιθυμίαν τὴν τῆς τροφῆς [Refs 4th c.BC+]; λάβρῳ χρώμενοι τῷ ποτῷ [λάβρος εἰς Βάκχον ὀλισθών “Anthologia Graeca” 11.25 (1st c.AD: Apollonides Epigrammaticus); λαγνεῖαι λαβρόταται 5th-4th c.BC: Timaeus Locrus Philosophus 103a; ἐπιθυμία 4th c.BC: Aristoteles Philosophus “de Generatione Animalium” 717a28; Ἔρως “Anthologia Graeca” 5.267 (Paul. Sil.); λάβρῳ μαχαίρᾳ 5th c.BC: Euripides Tragicus “Cyclops” 403. ">Refs 5th c.BC+]
__III adverb λάβρως violently, furiously, [ἵπποι] ἄνακτα φέρουσι λάβρως [Refs 6th c.BC+]
__III.2 eagerly, greedily, λ. διαρταμᾶν (of the eagle) [Refs 4th c.BC+]; τῇ βρώσει χρῆται λ. (of the lion) [Refs 4th c.BC+]—poetical word, used also in Ionic dialect and late Prose. [λᾱ- by position in Epic dialect: λᾰ- [Refs 5th c.BC+]