-enca suffix "without, -less" (PE17:167), cf. nec-, q.v.
Quenya
avalatya-
verb. *to refuse to open
-enca
without, -less
au-
without
au- (3) privative prefix, = "without" (AWA)
ava-
without
ava- (3) prefix "without" (AR2, AWA). In some cases apparently used as a mere negation prefix: The form avalerya in VT41:6 is seemingly a negated form of the verb lerya- "release, set free"; the verb avalerya- is suggested to have the same meaning as the root KHAP = "bind, make fast, restrain, deprive of liberty". Likewise, the verb avalatya- from the same source seems to mean "to close, shut", this being a negated form of a verb *latya- "open" (q.v.)
nec-
without, -less
nec- prefix "without, -less" (PE17:167), cf. -enca, q.v.
nec-
prefix. without
pen
without, not having
[pen prep. "without, not having" (PE17:171). Cf. Ú #1.]
sac-
verb. to close
A verb for “close” in the phrase á þak’ i fende, mekin “close the door, please” in Late Notes on Verb Structure (LVS) from 1969 (PE22/166). It might be a later iteration of √PAK “close, shut” from 1959-60 (VT41/5; PE17/159).
ú
without, destitute of
ú (1) adv. and prep. "without, destitute of" (VT39:14). Usually followed by genitive: ú calo "without light" (cala). In one source, ú is seemingly also used as a negative verb "was not" (VT49:13), but Tolkien revised the text in question.
A negation of the verb latya- “to open”, so meaning “✱refuse to open”, appearing in etymological notes associated with the Ósanwe-kenta essay from 1959-60 (VT41/5; PE17/159). It was probably a technical term connected to the “barrier of unwill” that one could choose to raise to prevent mental intrusion (VT39/23).