The Greek compound noun architriklinos (ἀρχιτρίκλινος) means "master of the banquet" or "head waiter" — from archos (chief/ruler) and triklinos (dining room with three couches arranged in a square). This official presided over Greco-Roman dinner parties, managing the feast, tasting the wine, and overseeing the servants.
The architriklinos appears uniquely in John 2:8–10 — the account of Jesus turning water into wine at the wedding in Cana, His first sign. When the master of the banquet tasted the water that had become wine, he was astonished by its superior quality. His comment — "you have saved the best till now" — is profoundly ironic: he does not know where the wine came from, but the reader understands it as a sign of Christ's messianic abundance. The best wine saved for last reverses the world's order and previews the eschatological banquet (Isaiah 25:6; Revelation 19:9) where the finest is reserved for God's redeemed people.