andú-

going down, setting (of sun), west

andú-, nú- "going down, setting (of sun), west" (PE17:18), element underlying words like the following, and also núna (q.v.)

andú-

prefix. going down, setting (of sun), west

A prefix having to do with going down, setting (of sun) and the west (PE17/18) based on √NDU “descend”. See, for example, Andúril “Flame of the West” (LotR/277; PE17/34) or Andustar “Westlands” (UT/165).