Valmiki Ramayana Yuddha Kanda Sarga 60 Shloka 43
Original Shlokaयदाचैनंनशेकुस्तेप्रतिबोधयितुंतदा ।।6.60.43।। ततोगुरुतरंयत्नंदारुणंसमुपाक्रमन् ।
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ते they, यदा that way, एनम् in that way, प्रतिबोधयितुम् called him again and again, नशेकुः not got up, तदा then, ततः thereafter, गुरुतरम् difficult, दारुणम् dreadful, यत्नम् effort, समुपाक्रमन् approaching.
They called him again and again, but he never got up. Then they made a difficult and dreadful effort approaching him.