silef
noun/adjective.
crystal (white), (white) crystal; [N.] silver, shining white
celeb
noun.
silver
celeb
silver
celeb
noun.
silver
brethil
noun.
silver birch, silver-birch; [N.] beech
celeborn
proper name.
Tree of Silver
celeborn
masculine name.
Silver-tree; Silver Tall
celebrimbor
masculine name.
Silver-fist
celebrin
adjective.
like silver (in hue or worth), like silver (in hue or worth), [G.] of silver
celebrindor
masculine name.
*Silver-lord
celebros
place name.
Silver Foam, Silver Rain
celebrían
feminine name.
Silver-queen
nimbrethil
place name.
Silver-birches
Argeleb
noun.
royal silver
Celebdil
noun.
silver tine
Celebrant
noun.
silver lode
Celebrimbor
noun.
silver fist
Celebrindal
noun.
silver foot
Celebros
noun.
silver foam, silver rain
celebrin
adjective.
not implying 'made of silver' but 'like silver' in hue
mithril
noun.
Moria-silver, true-silver
nimbrethil
noun.
'Silver Birches'
brethil
noun.
silver birch
gail
silver spark
geil
silver spark
mithril
noun.
true-silver, a silver-like metal
brethil
noun.
beech, beech-tree, silver birch
canath
noun.
"quarter", silver coin used in Gondor, the fourth part of a "mirian"
elanor
noun.
a flower, a kind of enlarged pimpernel bearing golden and silver flowers
gail
noun.
silver spark, silver spark, [ᴱN.] star; sign, token, heavenly body
ithildin
noun.
a silver-colored substance, which mirrors only starlight and moonlight
mithril
noun.
silver-like metal
celebdil
place name.
Silvertine
celebrindal
feminine name.
Silverfoot
Celebrant
Silverlode
celeb
silver
galvorn
copper, gold, iron, silver
mithril
copper, gold, iron, silver
gildin
silver spark
gîl
silver glint
gîl
silver glint
gîl
silver glint
mithril
true-silver
mithril
true-silver
mithril
true-silver
silith
silver light
thilion
glistening silver
thilion
glistening silver
thilion
glistening silver
Celebdil
Silverspike
Celebrant
Silverlode
Celebdil
Celebdil
Celebrant
Celebrant
Celebrimbor
Celebrimbor
gîl
star
gîl
star
alf
noun.
flower
canath
noun.
quarter
el
star
elen
star
elen
noun.
star
elloth
noun.
(single) flower
gil
noun.
star, bright spark
gil-
noun.
star
gil-
prefix.
spark
giliath
noun.
all the host of stars
gill
noun.
star
glîn
noun.
gleam, glint (usually of fine slender but bright shafts of light, particularly applied to light of eyes)
glînn
noun.
gleam, glint (usually of fine slender but bright shafts of light, particularly applied to light of eyes)
loth
noun.
flower, inflorescence,
a head of small flowers
loth
noun.
flower
lotheg
noun.
(single) flower
mallos
noun.
a golden flower
mithril
mithril
mithril
mithril
neldor
noun.
beech
ninglor
noun.
golden water-flower, gladden
niphredil
noun.
a pale winter flower, snowdrop
raud
noun.
metal
raud
noun.
metal
tin
noun.
spark
tinu
noun.
spark, small star
tîn
spark
êl
noun.
star (little used except in verses)
êl
star
êl
noun.
star
carag
spike
carag
spike
ceber
spike
edlothia
flower
edlothia
flower
edlothiad
flowering
fêr
beech
fêr
beech
gilgalad
starlight
gilgalad
starlight
gilion
of stars
gilith
starlight
gwaloth
collection of flowers
ithilgalad
3Gな%xな#2#
noun.
light of the moon, moonlight
ithilgalad
3Gな%xな#2#
noun.
light of the moon, moonlight
loth
flower
loth
flower
lotheg
single flower
neldor
beech tree
ross
polished metal
thilia
glisten
thilia
glisten
till
spike
tim
small star
tinc
metal
tinc
metal
tinc
eminent
tinna
glint
tinna
glint
tint
spark
tint
spark
tinu
spark
A word for “crystal (white)” (PE17/23) or “silver, shining white” (Ety/SIL) based on the root √SIL “shine (white or silver)”. It seemed to function as both a noun (1950s-60s) and an adjective (1930s), and was the basis for the adjective silivren appearing in the A Elbereth Gilthoniel prayer (PE17/23).
Conceptual Development: Earlier words for “crystal” appeared in the Gnomish Lexicon of the 1910s, such as G. glint (GL/39) and G. sincli (GL/67), both elements in G. Crosailin(t) or Crosincli “Crystal Globe”, a Gnomish name for the Moon.
Neo-Sindarin: For purposes of Neo-Sindarin, I would use S. silef mainly as the noun “(white) crystal”, and would use silivren as the adjective form.