vidhṛtāḥ svena tejasā

devah-the demigods; vaidhrtayah-the Vaidhrtis; nama-by the name; vidhrteh-of Vidhrti; tanayah-who were the sons; nrpa-O King; nastah-were lost; kalena-by the influence of time; yaih-by whom; vedah-the Vedas; vidhrtah-were protected; svena-by their own; tejasa-power.