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 

-(n)dil

suffix. -friend

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

-dil

suffix. -friend

-nil

suffix. -friend

nilmo

noun. friend

-dildo

suffix. -friend

-el

suffix. friend

-iel

suffix. -friend

-nildo

suffix. -friend

-ser

suffix. friend

elendil

masculine name. Elf-friend

Qenya [Ety/NIL; LR/029; LR/031; LR/048; LRI/Elendil; RS/197; RS/215; RSI/Elendil; RSI/Orendil; SD/403; SDI1/Elendil; SDI2/Elendil; SDI2/Nimruzân; SDI2/Nimruzîr; TII/Elendil; WRI/Elendil] Group: Eldamo. Published by

elesser

masculine name. Elf-friend

A variant of Elendil appearing in The Etymologies from the 1930s (Ety/SER), perhaps a compound of the root ᴹ√ELED “star-folk, Elf” and the suffix -ser “friend”, as indicated by the archaic form †Eleðser.

helde

noun. friend

heldo

noun. friend

helmo

noun. friend

málo

noun. friend

Qenya [Ety/MEL; PE18/046] Group: Eldamo. Published by

sermo

noun. friend

seron

noun. friend

sondo

noun. friend