Qenya
hiswa
adjective. grey, grey [of weather], *foggy, overcast; [ᴱQ.] dim, fading
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!
This word is glossed “grey” in The Etymologies, but perhaps means “✱foggy, overcast”, since Sindarin cognate hethw means “foggy, obscure, vague” and related noun hiswë means “fog”. @@@