lith (sand, dust), no distinct pl. form.
Sindarin
lith
noun. ash, ash; [N.] sand
lith
noun. ash, sand, dust
lith
ash
lith
sand
lith (sand, dust) (Names:178), no distinct pl. form.
lith
ash
(sand, dust), no distinct pl. form.****
lith
dust
(sand, ash) (Names:178)
lith
sand
(sand, dust) (Names:178), no distinct pl. form.
ast
dust
- ast (pl. aist if there is a pl.), 2) lith (sand, ash) (Names:178)
ast
dust
(pl. aist if there is a pl.)
A noun for “ash” appearing as an element in names like Lithlad “Plain of Ashes” (RC/457) and Dor-nu-Fauglith “Land under Choking Ash” (WJ/239-240), as well as in the adjective lithui “ashy, ashen” (RGEO/66, RC/765). It is translated as “dust” in the name Anfauglith “Gasping Dust” (S/150), but since this is the name for Ard-galen after the region was burned by the forces of Morgoth, this may simply be a loose translation for “ash”.
Conceptual Development: In The Etymologies of the 1930s N. lith was glossed “sand” from primitive ᴹ✶litse under the root ᴹ√LIT (Ety/LIT), and in this document N. Fauglith was translated “Thirsty Sand” (Ety/PHAU), as opposed to its original translation from the 1920s and early-to-mid 1930s which was simply “Thirst” (LB/275; SM/26, 101; LR/280).
Neo-Sindarin: For Neo-Sindarin I’d use lith mainly in its 1950s-60s sense “ash” but also allow its 1930s sense “sand”, but for “dust” I’d use [N.] ast. @@@ Maybe it would be better to coin a neologism for “sand”?