verb (used without object), con·spired, con·spir·ing.
verb (used with object), con·spired, con·spir·ing.
Origin of conspire
British Dictionary definitions for conspirer
verb (when intr, sometimes foll by against)
Word Origin for conspire
Word Origin and History for conspirer
late 14c., from Old French conspirer (14c.), from Latin conspirare "to agree, unite, plot," literally "to breathe together," from com- "together" (see com-) + spirare "to breathe" (see spirit (n.)). Or perhaps the notion is "to blow together" musical instruments, i.e., "To sound in unison." Related: Conspired; conspiring.