Quenya 

firin

dead

firin adj. "dead" (by natural cause) (PHIR).This may obsolete the earlier "Qenya" word firin "ray of the sun" (LT2:341)

hessa

dead, withered

hessa adj. "dead, withered" (LT1:255)

qualin

dead

qualin ("q")adj. "dead" (KWAL, LT1:264)

Sindarin 

fern

noun/adjective. dead, dead person; [N.] dead (of mortals)

An adjective in The Etymologies of the 1930s glossed “dead (of mortals)” under the root ᴹ√PHIR “die of natural causes”, used as a plural noun in the name Dor Firn i Guinar “Land of the Dead that Live” (Ety/PHIR). Christopher Tolkien choose to include the name Dor Firn-i-Guinar in the published version of The Silmarillion (S/188), and most Sindarin writers accept its ongoing validity.

gorth

dead

(adj.) 1) gorth (lenited ngorth; pl. gyrth), also fern, pl. firn. These adjectives may also be used as nouns ”dead person(s)”. According to LR:381 s.v. _

gorth

noun. a dead person

Sindarin [[Raith >] Fui 'Ngorthrim RC/526, gyrth Letters/4] Group: SINDICT. Published by

gorthrim

noun. the dead

Sindarin [[Raith >] Fui 'Ngorthrim RC/526] Group: SINDICT. Published by

Noldorin 

fern

noun/adjective. dead (of mortals)

Noldorin [Ety/PHIR] Group: Eldamo. Published by

fern

noun/adjective. dead (of mortals)

Noldorin [Ety/381] Group: SINDICT. Published by

fern

noun/adjective. dead person

Noldorin [Ety/381] Group: SINDICT. Published by

Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!

Early Noldorin

gwardh

adjective. dead

Early Noldorin [PE13/146] Group: Eldamo. Published by

Early Quenya

mána

adjective. dead

An adjective for “dead” in the Early Qenya Grammar of the 1920s based on the verb ᴱQ. maka- “die” (PE14/58).

Early Quenya [PE14/058] Group: Eldamo. Published by

narka

adjective. dead

An adjective for “dead” implied by the stative formation narkea “is dead” in Early Qenya Word-lists of the 1920s (PE16/140), perhaps connected to some precursor of √NDAK “slay”.

Early Quenya [PE16/140] Group: Eldamo. Published by

qalna

adjective. dead

Early Quenya [QL/076] Group: Eldamo. Published by

warda

adjective. dead

An adjective for “dead” from the Qenya Lexicon of the 1910s under the early root ᴱ√GWṚÐṚ “die” (QL/104), given as a cognate to G. gwarth “dead (only of persons)” in the contemporaneous Gnomish Lexicon (GL/44).

Early Quenya [GL/44; QL/104] Group: Eldamo. Published by

Qenya 

qalin

adjective. dead, dead, [ᴱQ.] dying

An adjective for “dead” in The Etymologies of the 1930s under the root ᴹ√KWAL “die (in pain)” (Ety/KWAL).

Conceptual Development: The adjective ᴱQ. qalin meant “dead” all the way back in the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s where it was derived from the early root ᴱ√QALA “die” (QL/76; PME/76). In the Qenya Lexicon it has an archaic variant ᴱQ. †qalna (QL/76). In Early Qenya Word-lists of the 1920s, qalin appeared in the stative construction qalinya {“is dead” >>} “is dying” (PE16/140).