Quenya 

avar

proper name. Elf who refused to join the westward march, Refuser, Elf who did not journey to Aman

The Elves who refused to journey to Aman, an agental formation of the ancient verb ava-¹ “to refuse” with the common agental suffix -r(o) (VT47/13, WJ/371). This name most frequently appeared in its plural form Avari referring to this entire people (S/52).

Conceptual Development: The name ᴹQ. Avar(o) first appeared in plural form _ in Tolkien’s linguistic notes from the 1930s with the gloss “The Departing”, and referred to those elves who left Middle Earth, whereas those who remained were referred to by the earlier name the ᴹQ. Lembi_ “Lingerers” (LR/169-170). Tolkien soon revised this name to refer to the Elves who remained behind, effectively replacing the term Lembi (LR/200). This name appeared in The Etymologies with essentially the same derivation as given above (Ety/AB).

Quenya [LT1I/Avari.001; LT2I/Avari.001; MRI/Avari.001; PE17/139.4213; PE17/139.4214; PE17/143.2402; PE17/143.2502; PE18/072.0404; PM/029.3608; PMI/Avari.001; PMI/Avari.004; S/052.3804; SI/Avari.001; SMI/Avari.001; UTI/Avari.001; VT47/13.3903; VT47/24.4408; WJ/371.0201; WJ/371.2904; WJ/371.2906; WJ/380.1010; WJI/Abari.003; WJI/Avari.001; WJI/Avari.009] Group: Eldamo. Published by

avar

recusant, one who refuses to act as advised or commanded

avar noun "recusant, one who refuses to act as advised or commanded"; pl. Avari Elves that refused to join in the westward march to Aman (WJ:371, singular Avar in WJ:377 and VT47:13, 24).The Etymologies gives Avar or Avaro, pl. Avari "Elves who never left Middle-earth or began the march" (AB/ABAR)