πρέσβευμα

ατος, τό
A. ambassador, in pl., πρεσβεύματ’ οὐ Δήμητρος ἐς μυστήρια E. Supp. 173, cf. Rh. 936; collectively, the embassy, Plu. Tim. 9; but, embassies, missions, Id. 2.541e.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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