मयि in me, यथार्हम् appropriately, वः to you, दया चैव kindness, अनुक्रोशः compassion, कृतः has been done, दुःखस्य of suffering, चिरम् for long, पापीयः is sinful, अर्थसिद्धये to discharge your duties, गम्यताम् go.

You have aptly shown your kindness and compassion to me. It is not proper to prolong one's grief. So do go and altend to your duties.