A noun in The Etymologies of the 1930s glossed “shade, shadow cast by any object” from primitive ᴹ✶daı̯ō under the root ᴹ√DAY “shadow” (Ety/DAY; EtyAC/DAY). This root was primarily used for N. dae “shadow” in N. Dor-Daedeloth “Land of the Shadow of Dread”; in later writings the Dae- element in that name seems to have become dae(r) “great” (WJ/183), so I suspect ᴹ√DAY “shadow” and its derivatives were abandoned.
noun. shade, shadow cast by any object
- N. dae “shadow (cast by an object or form), shade” ✧ Ety/DAY
Development Stages Sources ᴹ✶daı̯ō > leo [dajō] > [lajō] > [leo] ✧ Ety/DAY