tataḥ = therefore; tvām = unto You; śaraṇa-artham ca = seeking Your protection; śaraṇyam = You can award us protection; samupasthitāḥ = we have surrendered; paripālaya = defend; naḥ = us; rāma = Rāma; vadhyamānān = who are being attacked; niśācaraiḥ = by the night-rangers.