Exertion in example sentence
Presently the hide-and-seek frolicking began, and Tom and Becky engaged in it with zeal until the exertion began to grow a trifle wearisome; then they wandered down a sinuous avenue holding their candles aloft and reading the tangled webwork of names, dates, postoffice addresses, and mottoes with which the rocky walls had been frescoed (in candle-smoke).