राघव Rama, निग्रहे in resistance, अपि also, समर्थस्य of a capable one, मे my, बुद्धि: intellect, भ्रातृगौरवयन्त्रिता controlled by my respect for my brother, तं पापं प्रति towards that sinner, न प्रावर्तत did not advance.

'O Rama even though I was capable of restraining the sinner, my intellect did not let me do so out of respect for my brother.