to make ineffectual; invalidate; nullify: to void a check.
15.
to empty; discharge; evacuate: to void excrement.
16.
to clear or empty (often followed by of): to void a chamber of occupants.
17.
Archaic. to depart from; vacate.
verb (used without object)
18.
to defecate or urinate.
Origin: 1250–1300; (adj.) Middle English voide < Anglo-French, Old French < Vulgar Latin *vocīta, feminine of *vocītus, dissimilated variant of Latin vocīvus, itself variant of vac(ī)vus empty; see vacuum; (v.) Middle English voiden < Anglo-French voider,Old French < Vulgar Latin *vocītāre, derivative of *vocītus; (noun) derivative of the adj.
late 13c., "unoccupied, vacant," from Anglo-Fr. and O.Fr. voide "empty, vast, wide, hollow, waste," from L. 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. Noun sense of "empty space, vacuum" is from 1727. The verb meaning "to clear" (some place, of something) is first recorded c.1300; meaning "to deprive (something) of legal validity" is attested from early 14c.