There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.

Qenya 

firin

adjective. dead (by natural cause)

An adjective in The Etymologies of the 1930s glossed “dead (by natural cause)” derived from the root ᴹ√PHIR (Ety/PHIR).

fírima

adjective. mortal

Qenya [Ety/PHIR; EtyAC/ÑGUR] Group: Eldamo. Published by

fírimo

proper name. Mortal

Qenya [LR/072; LR/245; LRI/Fírimor; PE23/087] Group: Eldamo. Published by

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).


Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.