Lexical Definition

‎συνοδία‎ synodía (soon-od-ee'-ah) caravan ^G:N-F
from a compound of ‎σύν‎ and ‎ὁδός‎ ("synod")

company.

• companionship on a journey, i.e. (by implication), a caravan

Abbott-Smith

συνοδία, -ας, ἡ [in LXX: Ne 7:5, 64 (יחשׂ) * ;]
1. a journey in company (Plut., al.).
2. By meton., a company of travellers, a caravan: Lk 2:44.†

Abbott-Smith References

Liddell-Scott-Jones

συνοδία-ία, ἡ,

journey in company, companionship on a journey, [συνοδίαίαν ἀεί 4th-3rd c.BC: Menander Comicus “Μονόστιχοι - Fragmenta Comicorum Graecorum” 24. ">Refs 4th c.BC+]

__II in concrete sense, party of travellers, caravan, [συνοδίαίας [prev. work]646.6 ([prev. passage], 3rd c.AD)">NT+1st c.BC+]; σ. πρεσβευτοῦ ἢ ἀνθυπάτου [Refs 2nd c.AD+]
__III family, [LXX] also συνοδίαεία. -ιάρχης, ου, ὁ, leader of a caravan, [Refs 2nd c.AD+]: hence συνοδία-ιαρχία, ἡ, office of συνοδίαιάρχης, [Refs 2nd c.AD+]

_{LSJ Scripture Refs: Luke.2.44 ☩ LXX.Neh.7.5}