Meaning

noun a crosspiece between the legs of a chair

noun one of the crosspieces that form the steps of a ladder

verb sound loudly and sonorously

originFrom Middle English rung, from Old English hrung, from Proto-West Germanic *hrungu, from Proto-Germanic *hrungō. Cognate with Dutch rong (“pole, stanchion”), German Runge (“stake, pole, stanchion”), Gothic 𐌷𐍂𐌿𐌲𐌲𐌰 (hrugga, “a staff”).

Etymology from Wiktionary, CC BY-SA 3.0