Salt, in J.R.R. Tolkien's words

The Quenya word for salt is singë.

I couldn't find a Sindarin word for salt.

Feather, in J.R.R. Tolkien's words

The Quenya word for feather is quessë.

I didn't find a Sindarin word for feather in Hiswelókë's Sindarin dictionary, which is my main Sindarin resource. Although several websites list pess or cess as the Sindarin word for feather.

Feather, in my words + feathers

fepler : feather

The Illunse word for feather is fepler. Fepler is a rare last name.

This word is a mixture of the Old English word for feather which is feðer (feather; pl wings; pen) (which I transliterate to fether), and the Latin words for feather which are pluma (feather, esp. smaller and softer feathers; plume) and penna (feather, esp. larger or harder feathers; wing).

This is a new word.

feplera : feathers

The Illunse word for feathers is feplera.

Feathers in Latin is plumae and pennae. Feathers in Old English is feðra (which I transliterate to fethra).

Chalk, in my words + chalks

creal : chalk

The Illunse word for chalk is creal. Creal is an unusual last name. Creal is a rare first name. Creal Springs is a town in southern Illinois. Creal Reef Light is an lighthouse off the coast of Queensland, Australia.

This word is a mixture of the Old English word for chalk which is cealc (chalk, lime, plaster, cement), and the Latin word for chalk which is creta (clay/clayey soil; chalk; white/fuller's earth)

This is a new word.

creala : chalks

The Illunse word for chalks is creala. Creala Sailing Yacht boats. Creala is a very rare first name.

Chalks in Latin is cretae. Chalks in Old English is cealcas.

Salt, in my words + salts

sael : salt

The Illunse word for salt is sael. Sael is a unusual first name. Sael is a rare last name. In Danish sæl means seal (mammal). In Old English sæl means "room, great hall" and sǽl means "time, occasion".

This word is a mixture of the Old English word for salt which is sealt, and the Latin word for salt which is sal.

This is a new word.

saelas : salts

The Illunse word for salts is saelas. Saelas is a rare last name.

Salts in Latin is sales. Salts in Old English is sealt (same as the singular).

Clay, in my words + clays

argam : clay

The Illunse word for clay is argam. Argam is an unusual masculine name that can be Armenian. Argam is a rare last name. Argam is the name of a place in Indonesia. Argam was the name of a village in the East Riding of Yorkshire mentioned in the Domesday Book.

This word is a mixture of the Old English word for clay lám (loam, clay, earth), and the Latin word for clay which is argilla (white clay, potter's earth; clay).

This is a new word.

argama : clays

The Illunse word for clays is argama. Argama is a rare last name. Argama is the name of a place in Peru. In anime series Mobile Suit Gundam, Argama class is a carrier / assualt ship.

Clays in Latin is argillae. Clays in Old English is lám (same as the singular).

I realize that didn't use the common letter L in this word.