ὑποτονθορύζω
From LSJ
ὃν οὐ τύπτει λόγος οὐδὲ ῥάβδος → if words don't get through, neither a beating will | if the carrot doesn't work, the stick will not work either | whom words do not strike, neither does the rod
English (LSJ)
(sts. incorrectly written -ίζω, as in Lib.Decl.43.60),
A murmur in an under-tone, Luc.Merc.Cond.26, Bis Acc.4, al., Agath.4.7; ἐπῳδήν Luc.Nec.7.
Greek (Liddell-Scott)
ὑποτονθορύζω: (συχνάκις φέρεται ἡμαρτημένως -ίζω), τονθυρύζω, ψιθυρίζω χαμηλοφώνως, Λουκ. περὶ τῶν ἐπὶ Μισθ. Συνόντ. 26, Δὶς Κατηγ. 4, κλπ.· τι, διά τι πρᾶγμα, ἅμα καὶ τὴν ἐπῳδὴν ἐκείνην ὑποτονθορύσας ὁ αὐτ. ἐν Νεκυομ. 7· ἤδη ὑπετονθόρυζον καὶ ἤδη ἡ φωνὴ ἐς τὸ σαφέστερον διεκρίνετο Ἀγαθ. Ἱστ. σ. 144Β.