Quenya 

-ssë

he loves himself

-ssë (2), 3rd person sg. reflexive ending, melissë "he loves himself", possibly also quernessë *"he turned (himself)" (VT49:20-21). Compare -ttë #2. The ending -ssë* seems prone to confusion with the locative ending; an alternative wording would be the analytical construction melis immo with a separate reflexive pronoun. Tolkien himself changed quernessë to quernes immo **(VT49:20-21).