núta-

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

A transitive (ta-causative) verb appearing as andúta or núta “lower” in Late Notes on Verb Structure (LVS) from 1969, as opposed to intransitive (ya-formative) núya- “descend” (PE22/156). It was clearly based on ✶ndūtā- “cause to sink”, which appeared in Common Eldarin: Verb Structure (EVS2) from the early 1950s (PE22/135).

Conceptual Development: In earlier documents this verb had intransitive meanings, such as ᴱQ. nūta- “stoop, sink” in the Qenya Lexicon of the 1910s under the early root ᴱ√NUHU “bow, bend down; stoop, sink” (QL/68), and ᴹQ. núta- “set, sink (of Sun or Moon)” in The Etymologies of the 1930s under the root ᴹ√NDŪ “go down, sink, set (of Sun, etc.)” (Ety/NDŪ). In the Quenya Verbal System (QVS) from 1948, Tolkien revised intransitive {núta} “come down” to ᴹQ. unta (PE22/125 note #136); see that entry for discussion.

Neo-Quenya: For purposes of Neo-Quenya, I would limit the verb núta- to transitive “lower = ✱cause to sink or go down”. I would use núya- “descend” and [ᴹQ.] unta- “✱sink, stoop” for the intransitive senses.

núta-

set, sink

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

andúta-

verb. to lower