Quenya 

núta-

set, sink

núta- vb. "set, sink" (of Sun or Moon) (NDŪ). In early "Qenya", the word was glossed "stoop, sink" (LT1:263)

núta-

verb. to lower, to lower; [ᴹQ.] to set, sink (of Sun or Moon); [ᴱQ.] to stoop

andúta-

verb. to lower