κρότησις
From LSJ
ἀναπηδῆσαι πρὸς τὸν πάππον → jumped up on his grandfather's knees, sprang up into his grandfather's lap
English (LSJ)
εως, ἡ,
A clapping, striking, χειρῶν, as a sign of grief, Pl.Ax.365a; [σιδήρου] Ph.Bel.71.44 (pl.); τοῦ πνεύματος D.H. Comp.14 (v.l. for κροῦσις).
Greek (Liddell-Scott)
κρότησις: -εως, ἡ, κτύπημα, κροῦσις χειρῶν, εἰς σημεῖον θλίψεως, στεναγμοὺς ἱέντα σὺν δακρύοις καὶ κροτήσεσι χειρῶν Πλάτ. Ἀξίοχ. 365Α· ψύξεις καὶ κροτήσεις (σιδήρου καὶ χαλκοῦ) Φίλων ἐν Ἀρχ. Μαθ. 71· τοῦ πνεύματος Διον. Ἁλ. π. Συνθ. 166 Schäf.