form of эрий (eriy, “to twist, to turn”). Hence, "to twist each other". <span class="searchmatch">эрис</span> • (eris) (transitive) (sports, general) to compete, to contend, to fight...
Antonym: өһүл (öhül, “to unscrew”) (transitive) to wrap, to wind суруук (suruuk, “a screw”) <span class="searchmatch">эрис</span> (eris, “to compete, to fight, to struggle, to wrestle”)...