What's the "een" in Halloween?
late 13c., "unoccupied, vacant," from Anglo-French and Old French voide "empty, vast, wide, hollow, waste," from Latin vocivus "unoccupied, vacant," related to vacuus "empty" (see vacuum). Meaning "lacking or wanting" (something) is recorded from early 15c. Meaning "legally invalid" is attested from mid-15c.
"empty space, vacuum," 1727; see void (adj.).
"to clear" (some place, of something), c.1300, from void (adj.); meaning "to deprive (something) of legal validity" is attested from early 14c. Related: Voided; voiding.
v. void·ed, void·ing, voids
To excrete body wastes. adj.
Containing no matter; empty.