Another name for “Middle-earth” appearing in The Etymologies from the 1930s as a compound of ende “middle” and mar “earth” (Ety/ÉNED, MBAR, NDOR).
Qenya
endor
place name. Middle-earth
ambarenya
place name. Middle-earth
endamar
place name. Middle-earth
Name for Middle-earth appearing as ambar-endya in notes for Silmarillion drafts from the 1930s (SM/241), and also appearing as Ambarenya in The Etymologies, apparently a compound of Ambar “Earth” and enya “middle” (Ety/MBAR).