Truth be told, the hope of destroying the rubes by ignoring them vainly ignores the most inescapable fact of our lives.
The old bulls sensed the cnunbling of their position and vainly tried to placate the reformers.
As Hudson vainly tried to save Lopez, the Honda roared away on just the wheel rims.
c.1300, "devoid of real value, idle, unprofitable," from Old French vein "worthless," from Latin vanus "idle, empty," from PIE *wa-no-, from root *eue- "to leave, abandon, give out" (cf. Old English wanian "to lessen," wan "deficient;" Old Norse vanta "to lack;" Latin vacare "to be empty," vastus "empty, waste;" Avestan va- "lack," Persian vang "empty, poor;" Sanskrit una- "deficient"). Meaning "conceited" first recorded 1690s, from earlier sense of "silly, idle, foolish" (late 14c.). Phrase in vain "to no effect" (c.1300, after Latin in vanum) preserves the original sense. Related: Vainly.