Usage: 2 forms in 3 verses
Form Translated As     In Verse(s)
αστραγάλουσ knuckles LXX.Dan.5.5
their vertebrae LXX.Zech.11.16
αστράγαλοσ knuckle LXX.Dan.5.24

Liddell-Scott-Jones

ἀστράγαλος (astragalos) a vertebrae G:N-M

ἀστράγαλος [ρᾰ], ,

(see. ὀστέον) one of the vertebrae, especially of the neck, [Refs 8th c.BC+]

__II ball of the ankle joint (not to be confused with σφυρόν, [Refs 5th c.BC+]; of various animals, [Refs 5th c.BC+]
__II.2 οἱ μὲν πόδες ἀστράγαλοί τευ, as a compliment, i.e. well-turned, [Refs 3rd c.BC+]
__III wrist, [LXX]
__IV plural, ἀστράγαλοι knucklebones used as dice or a game played with dice, ἀμφ᾽ ἀστραγάλοισι χολωθείς[Refs 8th c.BC+]; . μεμολιβδωμένοι loaded dice, [Refs 4th c.BC+]; later, dice proper, ἀντ᾽ ἀστραγάλων κονδύλοισι παίζετε[Refs 5th c.BC+]
__V ἐκ τῶν ἀστραγάλων μάστιξ scourge of strung bones, [Refs 2nd c.AD+]; compare ἀστραγαλωτός.
__VI moulding in the capital of the Ionic column, [Refs 1st c.BC+]
__VII milk vetch, Orobus niger, [Refs 1st c.AD+]
__VIII prism of wood, [Refs 4th c.BC+]
__IX ear-ring, ξύλινοι .[Refs 6th c.BC+]

LSJ Scripture Refs: LXX.Dan.5.5