PROTO: *HɨśɨwV (-ɫī)
MEANING: side
COMMENT: Reconstructed for the PEC level. The stem contains an element *-ɫī (av. xibi-l, PC *žeb-lV, PD *š:a-li < *š:aw-li) which is present not in all languages and may be an old suffix. But if it is not, then this is one of several very rare cases of tetrasyllabic roots in PEC. Quite enigmatic is the Lak. form čul 'side' (why č-?).
