Proto-Sino-Caucasian: *stV́ŋV ( ~ sṭ-)
Meaning: to wind, wrap
Comments and references : In HGC 37 compared with PEC *ʔilcVn- which is now (NCED) reconstructed as *=īrcVl. *=īlcVn is still possible if we suppose an assimilation in PL *ʔilcal < *ʔilcan.