Sindarin 


noun. grey flood

gwath (“shade, shadow, dim light”) + lô (“shallow lake, fenland”)

Sindarin [Tolkiendil] Group: Tolkiendil Compound Sindarin Names. Published by


place name. Greyflood

The Sindarin name of the river “Greyflood” translated on the map of The Lord of the Rings (LotR/1082). This name is a combination of gwath “shadow” and l(h)ô “flood” (UT/263).

Conceptual Development: This name first appeared as N. Gwathlo with a short o on the draft maps of the Lord of the Rings from the 1940s (TI/304, 312).


  • Ad. Agathurush “Greyflood” ✧ UT/263; UTI/Agathurush


gwath“shadow, dim light, shadow, dim light, [N.] shade”
l(h)ô“flood, fenland, flood, fenland; [G.] pool, lake”


  • Gwath-lō ✧ PE17/136 (Gwath-lō); VT48/27 (Gwath-lō)
  • Gwathlo ✧ PE17/136 (Gwathlo); VT42/09 (Gwathlo); VT48/27 (Gwathlo); VT48/28
  • gwathlo ✧ PE17/137
Sindarin [LotRI/Greyflood; LotRI/Gwathló; PE17/136; PE17/137; PMI/Gwathló; SA/gwath; UT/261; UT/263; UTI/Agathurush; UTI/Gwathló; VT42/09; VT48/27; VT48/28] Group: Eldamo. Published by