A word for “outside” in The Etymologies of the 1930s under the root ᴹ√ET “out, forth” (Ety/ET).
Conceptual Development: The Qenya Lexicon of the 1910s had ᴱQ. erus or erusta “outside” based on ᴱQ. eru “outward” (QL/36).
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
ava
adverb/adjective. outside, beyond; outer, exterior
avakúma
place name. Exterior Void
ava-
prefix. without
au-
prefix. without
ette
adverb/adjective. outside
Name of the “Exterior Void” beyond the world in Silmarillion drafts from the 1930s (SM/241), also appearing in The Etymologies as combination of ava “exterior” and kúma “void” (Ety/AWA, OY).