exa adj.? "other" (apparently as adjective) (VT47:10, VT49:33). Also eces ("k"), unless this is intended as the stem underlying exa (the root KES with prefixed stem-vowel) rather than a Quenya word (VT49:33).
Quenya
latin
open, free, cleared (of land)
-ula
suffix. = Latin -āx
quenya
noun. Elvish, High-elven, Elf-latin, †speech, Elvish, High-elven, Elf-latin, †speech; [ᴹQ.] belonging to the Qendi, Quendian
rísimandë
adverb. passim [Latin]; *scatteredly, here and there, at random
exa
other
exa
adjective. other
hyana
other
hyana adj. "other", cf. hya (VT49:14)
hyana
adjective. other
láta
open
láta adj. "open" (VT39:23), "open, not closed" (PE17:159, VT41:5)
panta
open
panta adj. "open" (PAT)
quendya
noun. Elvish
latin, latina adj. "open, free, cleared (of land)" (LAT). According to VT41:5, the adjective latina "is used rather of freedom of movement, of things not encumbered with obstacles".