πυρεύς
From LSJ
Ῥῦσέ με δεινῶν νοσημάτων, ἱερώτατε, ἱερωσύνην συναρμόσας ἐν χαρᾷ και ἐπιστήμης τὸ πολύτιμον κεφάλαιον → Deliver me from grievous afflictions, most holy one, joining sanctity together in joy with the precious fountainhead of knowledge
English (LSJ)
έως, ὁ, (πῦρ)
A one who lights fire or burns, Hsch. (pl.); πυρις (sic), = flamines, Gloss. (fort. ἱερεῖς). II fire-proof vessel, cj. in AP13.13.
