Lexical Definition

‎συνευωχέω‎ syneuōchéō (soon-yoo-o-kheh'-o) to feast with ^G:V
from ‎σύν‎ and a derivative of a presumed compound of ‎εὖ‎ and a derivative of ‎ἔχω‎ (meaning to be in good condition, i.e. (by implication) to fare well, or feast)

feast with.

• to entertain sumptuously in company with, i.e. (middle voice or passive) to revel together

Abbott-Smith

* συν-ευωχέω, -ῶ
to entertain together. Pass., to fare sumptuously or feast together or with: Ju 12; c. dat. pers., II Pe 2:13 (Arist., Luc., al.).†

Abbott-Smith References

Liddell-Scott-Jones

συνευωχέομαι-έομαι,

passive, feast together, [NT+4th c.BC+]; [ἀνδριάντι] [Refs]

_{LSJ Scripture Refs: 2Pet.2.13}