Canto 1 - Boyhood
Bāla-kāṇḍa
Chapter 35: The History of Gaṅga
Text 1.35.16

या मेरुदुहिता राम तयोर्माता सुमध्यमा।
नाम्ना मनोरमा नाम पत्नी हिमवतः प्रिया॥

meru-duhitā rāma tayor mātā sumadhyamā
nāmnā
manoramā nāma patnī himavataḥ priyā

meru-duhitā = the daughter of Meru; rāma = O Rāma; tayoḥ = there; mātā = was mother; sumadhyamā = the slender-waisted; nāmnā = of the name; manoramā = Manoramā; nāma = famous; patnī = the wife; himavataḥ = of Himavān; priyā = beloved.

O Rāma, the slender-waisted daughter of Meru of the name Manoramā, famous as the beloved wife of Himavān, was their mother.