ajñānāt hi = out of ignorance; kṛtam yasmāt = because you killed my son; idam tena eva jīvasi api hi = you are [still] alive; adya = now; kulam = otherwise the dynasty; na syāt = would not even exist; rāghavāṇām = of the Raghus; kutaḥ bhavān = what to speak of you.