प्रकृत्या by nature, कोपनम् angry, एनम् that too, पुत्रस्य son, आधयः now, घर्मे righteous, दीप्तम् glowing, अर्कम् sun, रश्मयः इव beams off sun, पुनःagain, सन्दीपयामासुः makes him brighter

By nature, he is angry. Now with the loss of his son, he was glowing like the Sun that shines brighter by the rays in summer.