συμποσίαρχος
From LSJ
νὺξ μὲν ἐμὸν κατέχει ζωῆς φάος ὑπνοδοτείρη → sleep-giving night hath quenched my light of life | sleep-giving night covers my light of life | night, the giver of sleep, holds the light of my life
English (LSJ)
ὁ,
A president of a drinking-party, toastmaster, X.An.6.1.30, Alex.21, Plu.2.208b, 620f, OGI646.14 (Palmyra, iii A.D.), etc.; also συμποσι-άρχης, ου, ο, Supp.Epigr.7.151,168 (ibid., ii A.D.). Cf. συμποτικός.
German (Pape)
[Seite 989] ὁ, auch συμποσιάρχης, der magister bibendi, der Zechmeister, der beim Trinkgelage od. Schmause Alles anzuordnen hat; Xen. An. 5, 9, 30; Plut. Symp. 1, 4, 2.