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 

elériel

masculine name. Ælfwine

A rejected variant of Elendil appearing in The Etymologies from the 1930s (EtyAC/ÑEL), perhaps a compound of the root ᴹ√ELED “star-folk, Elf” and the (rejected) suffix -el “friend”.

Elements

WordGloss
ELED“Star-Folk, Elves”
-el“friend”