Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
εύοδοσ is prosperous LXX.Prov.11.9
εύοδοι prosperous LXX.Prov.13.13
εύοδα be prosperous LXX.Num.14.41

Liddell-Scott-Jones

εὔοδος (euodos) prosperous G:A

εὔοδος-ος, ον,

easy to pass, of mountains, [Refs 5th c.BC+]; of a road, easy to travel, ὁδὸς.. εὐοδωτάτη τοῖς ὑποζυγίοις[εὔοδοςα ἔσται ὑμῖν LXX.Num.14.41 ">LXX]. adverb -όδως, πορεύεσθαι[LXX]

__2 metaphorically, free from difficulty, simple, [Refs 4th c.BC+]. adverb simply, readily, νοεῖσθαι [Refs 1st c.BC+]: superlative -ώτατα, τῷ τῆς ἀνδρείας ὀνόματι προσαγορεύεσθαι[Refs]
__3 favourable, πρός τι Mnesith. cited in [Refs 2nd c.AD+]; εὔοδοςος θεός, of Pan, [Refs 3rd c.BC+]

LSJ Scripture Refs: LXX.Num.14.41 ☩ LXX.Prov.24.64