*sturtijan (“to throw”). *<span class="searchmatch">thurd</span> to throw *Zbelthurdos ^ Duridanov, Ivan Vasiliev (1985) Die Sprache der Thraker [The Language of the <span class="searchmatch">Thracians</span>][1] (in German)...
has an article on: Zibelthiurdos Wikipedia From *zbel (“lightning”) + *<span class="searchmatch">thurd</span> (“to throw”), thus "the lightning thrower", "the lightning bearer". Compare...