<span class="searchmatch">Proto</span>-Indo-European *ks-es-, from *kes-. Akin to Lithuanian ši̇́ekštas, Latvian siêkstа. *<span class="searchmatch">šьstъ</span> m pole * -ъmь in North <span class="searchmatch">Slavic</span>, -omь in South <span class="searchmatch">Slavic</span>....