Lexical Definition

‎συμπίνω‎ sympínō (soom-pee'-no) to drink with G:V
from ‎σύν‎ and ‎πίνω‎

drink with.

Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
συνεπίομεν we drank with Acts.10.41
συμπιείν to drink together LXX.Esth.7.1

Abbott-Smith

συμπόσιον, -ου, τό (< συμπίνω), [in LXX: Es 7:7 (מִשְׁתֶּה יַיִן) 4:17, I Mac 16:16, II Mac 2:27, III Mac 4:16 5:36 6:33; σ. οἴνου, Sir 34 (31):31 35 (32):5, 49:1 * ;]
1. a drinking party
2. By meton., of the party itself, the guests (Plut); pl., σ. σ. (colloq.; v. M, Pr., 97), in parties or companies: Mk 6:39.†

Abbott-Smith References

Book Refs
Ezra 4:17 · 7:7
Mark 6:39

Liddell-Scott-Jones

συμπίνω [],

Aeolic dialect imperative σύμπωθι [Refs 7th c.BC+]:—drink together, μετά τινος [Refs 5th c.BC+]; συμπίεσθε, ο; will you.. ? [Refs 5th c.BC+]

__2 perfect participle passive συμπεπομένον absorbed, [Refs 3rd c.BC+]
__3 soak, ἔασον συμπιεῖν ἡμέραν μίαν [Refs 1st c.AD+]