Master List of Elven Endonyms
Arising 15,000 years ago, the various elven tribes, nations, and communities descend from the Dark Trolls who lived around the translucent waters of the Well of Eternity. Transformed into highly intelligent and virtually immortal beings, the nascent race of Night Elves abandoned their ancient heritage worshipping the Loa of their troll ancestors. Turning to the moon goddess Elune, these elves discovered the name "Kalimdor" from communing with their deity. Soon, they would adopt the name Kaldorei, which meant "children of the stars" in their native tongue, later called Darnassian for their home in the boughs of the corrupted World Tree Teldrassil.
Following a number of events in our world's history, these Kaldorei would see their descendants—or evolve themselves to—become a wide variety of other elven races. Below, I summarize years of research into the various names these communities have, both their vulgar varieties (e.g., "Night Elf") and their endonyms (e.g., "Kaldorei"). In some cases, liberties have been made in order to complete this list; I will endeavour to maintain the accuracy of this list in the future.
Night Elf: Kaldorei "Children of the stars"
Highborne: Queldorei "Children of noble birth"
– alternatively: Eldredorei "[unknown]"
– alternatively: Shendorei "Hidden children"
Illidari Night Elf Demon Hunter: Feldorei "Children of fel"
Scythborne Worgen (Wild Elf): Taldorei "Children of Taldoren"
Fireborne: Felodorei "Children of fire"
Nightborne: Shal'dorei "Children of the night"
Nightfallen: Vor'dorei "Broken children
Withered: Ethe'dorei "Withered children"
Felborne: Thal'dorei "Children of Thal'dranath, the Broken Shore"
Aranasian Elf: Fal'dorei "Children of Falanaar"
High Elf: Quel'dorei "Children of noble birth"
– alternatively: Belore'dorei "Children of the sun"
Blood Elf: Sin'dorei "Children of the blood"
Highvale Elf: Thas'dorei "Children of the forest"
Void Elf: Ren'dorei "Children of the void"
Illidari Blood Elf Demon Hunter: Illi'dorei "Children of Illidan"
Felbood: Kael'dorei "Children of Kael'thas"
Wretched: Shin'dorei "Failing children"
Darkfallen: San'dorei "Children of death"
Half Elf: Shan'dorei "Honoured children"
Arathi: Arath'dorei "Children of Arathor"
: The -dorei suffix is poetically rendered "children of the..," but it can also simply mean "people of..."
: Half Elves of myriad other races are known as Shan'dorei, "honoured children," a term employed with a sort of irony as most Half Elves are looked down upon in their respective elven, or otherwise, societies.