Sindarin 

sarn

noun. stone (as a material)

Sern in UT/463 is a misprint, see VT/42:11

Sindarin [Ety/385, S/437, UT/463, VT/42:11, RC/327] Group: SINDICT. Published by

sarn

noun. small stone

Sern in UT/463 is a misprint, see VT/42:11

Sindarin [Ety/385, S/437, UT/463, VT/42:11, RC/327] Group: SINDICT. Published by

gond

stone

_n. _stone, rock. Archaic S. gond > gonn. Q. ondo. >> Gondor

Sindarin [(PE17 Sindarin Corpus) PE17:28-9] < *PQ _gondō_ stone, general as a substance or material. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

gond

noun. great stone, rock

Sindarin [Ety/359, S/431, X/ND1] Group: SINDICT. Published by

gondren

adjective. (made) of stone

Sindarin [Toll-ondren TI/268, TI/287] Group: SINDICT. Published by

sarn

stone

1) (small stone, or stone as material) sarn (i harn, o sarn), pl. sern (i sern); also used as adj. ”stony, made of stone”. 2) gôn (i **ôn, construct gon); pl. gŷn, coll. pl. #**gonath as in Argonath. 3) (larger stone) gond (i **ond, construct gon) (great stone or rock), pl. gynd (i ngynd = i ñynd), coll. pl. gonnath** (Letters:410).