Usage: 3 forms in 12 verses
Form Translated As     In Verse(s)
συριεί he shall whistle at LXX.Job.27.23LXX.Isa.5.26
lord will whistle for LXX.Isa.7.18
shall whistle LXX.1Kgs.9.8LXX.Jer.19.8LXX.Jer.49.17LXX.Jer.50.13LXX.Zeph.2.15
συρίζοντοσ hissing LXX.Jer.46.22
εσύρισαν They whistled LXX.Lam.2.16
they whistle LXX.Lam.2.15
whistled at LXX.Ezek.27.36

Liddell-Scott-Jones

συρίζω (surizō) to hiss G:V

συρίζω,

[Refs 5th c.BC+]; Attic dialect συρίττω [Refs 5th c.BC+]; Doric dialect συρίσδω [Refs 3rd c.BC+]: future συρίξομαι [LXX+2nd c.BC+]: aorist ἐσύριξα [Refs 5th c.BC+]yw, compare σῦριγξ):—play the σῦριγξ, pipe, ὅτε.. συρίζεις, Πάν [Refs 5th c.BC+]

__II make any whistling or hissing sound, hiss like a serpent, συρίξας ἐγώ [Refs 5th c.BC+]; ψόφος.. οἷον συριττούσης τῆς γλώττης, of the tongue sounding ς, [Refs 5th c.BC+]; of the wind, whistle, [Refs 4th c.BC+]
__II.2 hiss an actor [Refs 4th c.BC+]
__II.2.b with accusative person, hiss him, [Refs 4th c.BC+]:—passive, [Refs 5th c.BC+]

LSJ Scripture Refs: LXX.Isa.5.26