Qenya
kaimasse
noun. lying in bed, sickness, sickness, (lit.) lying in bed
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.
Early Quenya
kaima
noun. couch, bed
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.
A noun in The Etymologies of the 1930s apparently referring to “sickness” from the original sense of “lying in bed”, an abstract or locative form of ᴹQ. kaima “bed” (Ety/KAY).