Valmiki Ramayana Yuddha Kanda Sarga 38 Shloka 18
Original Shlokaततोऽस्तमगमत्पूर्यःसन्ध्ययाप्रतिरञ्जितः ।।6.38.18।। पूर्णचन्द्रप्रदीप्ताचक्षपासमभिवर्तते ।
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ततः thereafter, सूर्यः sun, सन्ध्यया twilight, प्रतिरञ्जितः reddened, अस्तम् sun set आगमत् had set in, पूर्णचन्द्रप्रदीप्ता full moon shining, क्षपाच dazzling, समभिवर्तते night set in duly.
Thereafter the Sun had set in, and twilight reddened. Full moon started shining as night had set in.