Liddell-Scott-Jones

ἀγκών (agkōn) an angle ^G:N-M

ἀγκών, ῶνος, ὁ,

bend of the arm, hence, elbow, ὀρθωθεὶς δ᾽ ε᾽π᾽ ἀγκῶνος[Refs 8th c.BC+]; ἀγκῶνι νύττειν to nudge, [Refs 8th c.BC+]; proverbial, ἀγκῶνι ἀπομύττεσθαι Bionap.[Refs 3rd c.AD+]; ἐπ᾽ ἀγκῶνος δειπνεῖν, of the attitude at meals, [Refs 2nd c.AD+]

__2 arm, Νίκας ἐν ἀγκώνεσσι πίτνειν[Refs 5th c.BC+]
__3 bend in animals' legs, [Refs 5th c.BC+]
__II any nook or bend, as the angle of a wall, ἀγκὼν τείχεος[Refs 8th c.BC+]; bend, bay of a river, [Refs 5th c.BC+]; headlands which form a bay, [Refs 1st c.BC+]; ἀγκῶνες κιθάρας ribs which support the horns of the cithara, [Refs 5th c.AD+]; ends of stomach-bow, [Refs 2nd c.BC+]; arms of torsion-engine, [Refs 3rd c.BC+]; cross-bar of same, [Refs 3rd c.BC+]; arm of throne or chair, [LXX+5th c.AD+]; perhaps clamp, [Refs]
__II.2 kind of vase, [Refs 2nd c.AD+]
__III proverbial, γλυκὺς ἀ. used κατ᾽ ἀντίΦρασιν of a difficulty, [Refs 5th c.BC+], from a long bend or reach in the Nile; but apparently ={παραγκάλισμα}, thing to be embraced, treasure,[Refs]; also ={ἀβρότονον}, [Refs 1st c.AD+]

_{LSJ Scripture Refs: LXX.2Chr.9.18}