Jastrow: גִּמְגֵּם

גִּמְגֵּם (Pilp. of גמם) [to peel, scrape; trnsf., cmp. חֲסַם II, חָכַךְ] to hesitate, stammer, to speak with an expression of uncertainty or of scruple. Kidd. 30ᵃ אל תְּגַמְגֵּם ותאמר לו that thou need not hesitate in answering him; Sifré Deut. 34. Ber. 22ᵃ היה מְגַמְגֵּם למעלה וכ׳ (Ms. M. a. Rashi מג׳ וקורא) was speaking hesitatingly over (as the Amora of) R. Judah &c. Ib.ᵇ מג׳ וקורא he should read in a hesitating manner (rapidly murmuring); Y. ib. III, 6ᶜ bot. התחיל מג׳ בה he commenced stammering over it (hesitating to pronounce the Divine Name). [Cant. R. to VII, 1 מתגמגם, transpos. of מתמגמג, v. מָגַג.]