Reconstructions

PCS
*ṣ̂Vrˁ(-at)- - wasp (SED II No. 223)
PCS
*ŝrd - to flee away (Kogan 2015: 201)
PCS
*ŝaw/y- - a single head of small cattle (SED II No. 217; Kogan 2011: 205)
PCS
*ŝˁr - to know (Kogan 2015: 200)
PCS
*tḳn - to be in order (HALOT 1784)
PCS
*tmm - to be completed (Hasselbach–Huehnergard 2007:420; Kogan 2015: 219)
PCS
*ṯˀr - to avenge blood (Kogan 2015:328)
PCS
*ṯaˀṭ- - mud, clay (Renfroe 1992:67; Kogan 2015: 322)
PCS
*ṯkl - to be / become childless; to be bereft (SED I No. 76ᵥ; HALOT 1491; Kogan 2015: 201)
PCS
*ṯamma - there (Kogan 2015: 202)
Contrary to a widespread opinion (AHw. 1272, HALOT 1546, DUL 913), neither Akk. šumma ‘if’ nor Arb. ṯumma ‘then, afterwards’ can be related to *ṯamma