马齿徒增 mǎchǐtúzēng to have aged in vain Origin Definitions Defs Strokes Stroke Words Sentences Sents 马齿 馬齒 mǎchǐ one's age a humble way of referring to one's own age, as in the phrase 马齿徒增 mǎchǐtúzēng徒 tú merely merely; only; simply增 zēng verb to increase (bound form) to increase; to add; to augment