Liddell-Scott-Jones

ἀνακρούω (anakrouō) to play music ^G:V

ἀνακρούω-ω,

poetry ἀγκρ-, push back a gate-pin, βάλανον[Refs 4th c.BC+]; stop short, check, ἵππον χαλινῷ[Refs 5th c.BC+]; back horses, τὸ ζεῦγος[Refs 1st c.AD+]:—passive, [Refs 4th c.AD+]

__2 ἀπὸ χερσοῦ νῆα.. ἀνακρούωεσκον thrust her off from shore, [Refs 3rd c.BC+]; throw up, δίσκον[Refs 2nd c.AD+]
__II in middle, ἀνακρούωεσθαι πρύμνην put one's ship astern, by backing water, [Refs 5th c.BC+]; or ἀνακρούωεσθαι alone, [Refs 5th c.BC+]; but νῆας ἀ., simply row back, [Refs 3rd c.AD+] put back and make a fresh start, [Refs 5th c.BC+]
__II.2 in Music, strike up, [Refs 3rd c.BC+]: hence, begin a speech, [Refs 2nd c.BC+]
__III ἀνακρούωειν χεροῖν, ={ἀνακροτεῖν}, [Refs 5th c.BC+]