ॐ उशन् ह वै वाजश्रवसः सर्ववेदसं ददौ । तस्य ह नचिकेता नाम पुत्र आस ॥ १॥

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English Translation

Vajasravasa, desiring rewards, performed the Visvajit sacrifice, in which he gave away all his property. He had a son named Nachiketa. 
 

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English Commentary

Ushan, desiring for the fruits of the sacrifice. Ha and vai are two particles which have the force of recalling to mind what had passed. Vâjasravasah: vâja means food, srava means fame; the compound, therefore, means one who had attained fame by the giving of food; or, the compound may be a proper name. The son of Vâjasrava is Vâjasravasah. Vâjasravasah, it is said, performed the Visvajit sacrifice (in which all is given away) desirous of its fruits. During the sacrifice he gave away all his wealth. The performer of the sacrifice had a son named Nachikêtas.

Sri Shankaracharya