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!

Qenya 

kaimasse

noun. lying in bed, sickness, sickness, (lit.) lying in bed

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).