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

The Quenya words for grass are salquë (grass) and linquë (grass, reed). The word sara means (stiff dry grass, bent)

In Sindarin there are several words that can mean grass, thâr (stiff grass), plus nan (wide grassland, land at foot of hills with many streams) and parth (field, enclosed grassland, sward).

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

The Quenya word for cliff is ollo (cliff, seaward precipice). Also the Quenya word lanca means "sharp edge (not of tools); sudden end (as a cliff-edge, or the clean edge of things made by hand or built)"

I didn't find a Sindarin word for cliff, but the word lanc means edge (sharp edge (not of tools), sudden end (as a cliff-edge, or the clean edge of things made by hand or built)).

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

The Quenya word for plain is palar (flat field, 'wang', plain).

The Sindarin words for plain are lad (plain, valley) and talath (flat surface, plane; flat land, plain, (wide) valley).

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

In Quenya ravanda may mean wilderness. One of the meanings of similar word ráva is wild, untamed.

The Sindarin word for wilderness is rhovan.

Rhovanion or Wilderland is a region of northern Middle-earth. It's the region between the Misty Mountains in the west and the River Celduin in the east.

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

The Quenya word for desert is erumë.

The Sindarin word for desert is eru (waste, desert).

Both of these words appear related to the Latin word for desert eremus (waste, desert), which was mentioned in my previous post.

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

The Quenya words for valley are nandë or suffix -nan (valley), and tumba or tumbo (deep valley, under or among hills).

The Sindarin words for valley are imlad (deep valley, narrow valley with steep sides but a flat habitable bottom), imrath (long narrow valley with a road or stream running through it lengthwise), nan or nand (grassland, valley), and tum (deep valley, under or among hills).

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

The Quenya words for lake are ailin (pool, lake) and ringwë (cold pool or mountain lake).

The Sindarin words for lake are lô (shallow lake, fenland), nen (water; used of a lake, pool or lesser river), ael or oel (lake, pool, mere), and rim or rhim (cold pool or mountain lake).

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

The Quenya words for grove (wood, small forest) are tavas (woodland) and tavar (wood).

The Sindarin words for grove (wood, small forest) are glad (small forest, wood) and eryn (wood).

By the way, the Quenya word for forest is taurë (great wood, forest), and the Sindarin words for forest are taur (great wood, forest) and tawar (wood as a material, forest).

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

The Quenya words for creek or stream or brook are celumë (stream, a flow) and nellë (brook).

The Sindarin words for creek or stream are nen (water of a lesser river, or lake, or pool) and oll (torrent, mountain-stream).

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

I wan't able to find a Quenya word for swamp or marsh.

The Sindarin word for fenland (swampy, marshy, boggy land) is lô.

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

The Quenya words for mountain are oron (mountian, a height) and aicassë (mountain peak).

The Sindarin word for mountain is orod.

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

The Quenya word for sea is ëar.

The Sindarin words for sea are gaear and aear. Both words seem to be valid.

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

The Quenya words for island are lóna (island, remote land difficult to reach) and tol (island, isle, rising with sheer sides from the sea or from the river)

The Sindarin word for island is tol (or toll) (island, isle, rising with sheer sides from the sea or from the river).

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

The Quenya word for field is peler (fenced field).

The Sindarin words for field are parth (field, enclosed grassland, sward) and pel (fenced field).

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

The Quenya words for hill are ambo (hill) and tundo (hill, mound).

The Sindarin words for hill are amon (hill, steep-sided mount), dôl (head, and hence hill or mountain), and tund (hill, mound).

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

The Quenya word for forest is taurë (great wood, forest).

The Sindarin words for forest are taur (great wood, forest) and tawar (wood as a material, forest).

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

The Quenya word for river is sírë (river, stream).

The Sindarin words for river are sîr (river) and duin (long and large river).