As he ever helps in the accomplishment of all acts and increased the wealth of men and is engaged in doing good to them, therefore he is called Siva.
समेधयति यन्नित्यं सर्वार्थान् सर्वकर्मसु। शिवमिच्छन् मनुष्याणां तस्मादेष शिवः स्मृतः॥