This gives a different three-stroke #cuneiform sign for NU (nu, sir₅), but that one is “light; fire; lamp; alabaster”, according to the #Sumerian-lexicon.
on 02015-09-09A "Sumerian lexicon" with 1,255 logograms and 2,511 compound words. However, it doesn’t actually contain pictures of the #cuneiform signs! Nevertheless, I am fairly sure the “nu” on p.14 meaning “image, likeness, picture, figurine, statue; no, not, without, negative; pronominal prefix” is U+12261, which contains three strokes.
on 02015-09-09