Quenya
aucelië
noun. sewer, (lit.) away-flowing
Elements
Word Gloss au- “away (from)” KEL “flow (down or away), run (of water or rivers), go away, flow (down or away), run (of water or rivers), go away, [ᴹ√] run away especially downwards or at end; [ᴱ√] ooze, trickle”
A neologism for “sewer” coined by Helge Fauskanger for his NQNT (NQNT), an abstract noun formation based on au- “away” and √KEL “flow”, so more literally “an away-flowing”.