闰统 rùntǒng illegitimate rule Origin Definitions Defs Strokes Stroke Words Sentences Sents 闰 閏 rùn illegitimate (bound form) something extra, secondary, or not belonging to the main sequence, historically used to refer to an illegitimate or short-lived dynasty统 統 tǒng nounadjective system (bound form) a sequence or an interconnected system; a lineage