enderinoun "middle-days" (sg. *enderë), in the calendar of Imladris three days inserted between the months (or seasons) yávië and quellë(Appendix D)
Endiennoun, alternative term for "autumn" (PM:135). In the Etymologies, the word Endien was assigned a quite different meaning: "Midyear, Midyear week", in the calendar of Valinor a week outside the months, between the sixth and seventh months, dedicated to the Trees; also called Aldalemnar (YEN, LEP/LEPEN/LEPEK)
Endor place-name "Middle-earth" (SA:dôr, NDOR), "centre of the world" (EN); also long form Endórë "Middle-earth" (Appendix E); allative Endorenna "to Middle-earth" in EO. The form Endór in MR:121 may be seen as archaic, intermediate between Endórë and Endor (since long vowels in a final syllable are normally shortened: Endór > Endor). Endór functions as an uninflected genitive in the source: Aran Endór, "King of Middle-earth".