निमज्जथुः _nimajjathuḥ

निमज्जथुः 1 The act of diving or entering into, plunging.

-2 Plunging into the bed, sleeping, going to bed; तल्पे कान्तान्तरैः सार्धं मन्ये$हं धिङ् निमज्जथुम् Bk.5.2.