Sindarin 

dôr

noun. land, dwelling-place, region where certain people live

The form dor in the Etymologies is a misreading, see VT/45. In composition and in toponyms, the word is nevertheless reduced to Dor

Sindarin [Ety/376, S/430, WJ/413, Letters/417, VT/45:38, R] Group: SINDICT. Published by