Reconstructions

PS
*šamm- - grass, herb ( Fronzaroli 1969a: 274, 289)
See discussion in Kogan 2012: 231
PS
*š/ŝVmm- - kind of reptile (snake, lizard) (SED II No. 204)
PS
*šamn- - fat, oil (SED I No. 248)
PS
*šumšum- - ant (SED II No. 205)
Cf. Tgr. šašənte ‘ants’ (WTS 214), probably related with the first m lost and the second one assimilated to n before t (for an alternative interpretation of this form v. *sā/ūs- ‘moth’, SED II No. 198). Cf. Sod. mašo ‘kind of ant’ (EDG 433). Metathesis of a non-reduplicated prototype of the present root?
PS
*šamā̆y- - heaven (Fronzaroli 1965a: 136, 144, 149; Kogan 2011: 192)
PS
*šin - to, towards (Arakelova 2001:28)
PS
*šan-at- - year (Fronzaroli 1965a: 143, 148, 150; Kogan 2011: 197)
PS
*šin-at- - sleep (Kogan 2011: 229; Kogan 2015: 268)
attested everywhere except ES
PS
*šina - they (fem.) (HALOT 252, Kogan 2009:68, Huehnergard 2019:51–52)

For the distribution of the initial š- and h- in individual languages see *šū̆/šū̆ˀ/šū̆wa (compare also the initial ˀ- in BArm). See Kogan 2009:66, 68.

PS
*šu(n)bul-at- - ear of corn (Fronzaroli 1969b: 12, 27, 34; Kogan 2011: 201; Kogan 2012: 233)