耄耋之年 màodiézhīnián old age Definitions Defs Origin Strokes Stroke Words Sentences Sents 耄耋 màodié advanced age the age of seventy, eighty, or ninety; a very old age之 zhī particle [possessive] Connects a describing word or phrase to the noun it describes, similar to 的 de but used in formal or literary writing.年 nián noun age a person's age or a specific stage in a person's life