Lexical Definition

‎βοή‎ boḗ (bo-ay') outcry ^G:N-F
from ‎βοάω‎

cry.

• a halloo, i.e. call (for aid, etc.)

Abbott-Smith

βοή, -ῆς, ἡ, [in LXX for זְעָקָה, etc. ;]
a cry: Ja 5:4.†

Abbott-Smith References

Liddell-Scott-Jones

βοή,

Doric dialect βοά, ἡ, loud cry, shout, in [Refs 8th c.BC+] mostly battle-cry, βοὴν ἀγαθός [Refs 8th c.BC+]; βοᾶς δ᾽ ἔτι μηδ᾽ ὄνομ᾽ εἴη let there be not even the name of war, [Refs]; later of prayer, Ἑλληνικὸν νόμισμα θυστάδος β. [Refs 4th c.BC+]; κακοφάτιδα β. cry of mourning, [Refs 5th c.BC+]; also, song of joy, ἴτω ξύναυλος βοὰ χαρᾷ [Refs 5th c.BC+]; of oracles, ἀείδουσα.. βοὰς ἂς ἂν Ἀπόλλων κελαδήσῃ [Refs 5th c.BC+]; shout, murmur of a crowd, [Refs 5th c.BC+]; of things, roar of the sea, [Refs 8th c.BC+]; sound of musical instruments, αὐλοὶ φόρμιγγές τε βοὴν ἔχον [Refs 8th c.BC+]; cry of birds, [Refs 5th c.BC+]; βοὴν θωΰσσειν, ἀϋτεῖν, [βοή τις [prev. author] “IT” 1386; βοάσομαι τὰν ὑπέρτονον βοάν 5th c.BC: Phrynichus Comicus 46 (Lyric poetry); βοὴν ἱστάναι 4th c.BC: Antiphanes Comicus 196.2 ">Refs 5th c.BC+]; ὅσον καὶ ἀπὸ βοῆς ἕνεκα as far as sound went, only in appearance, [Refs 5th c.BC+]

__II ={βοήθεια}, aid called for, succour, [Refs 5th c.BC+]. (g[uglide]o[uglide]ā, cf. Sanskrit jō-guvē (intensive of gávatē) 'proclaim aloud'.)