(p. 90) asāra unsubstantial, vapoury; negligible; worthless; false; pithless, marrowless, sapless (অসার কাঠ); futile, pointless (অসার যুক্তি). ̃তা, ̃ত্ব n. unsubstantiality; vaporiness; negligibility; worthlessness; falseness, falsity; lack of pith or marrow or sap; futility; pointlessness. অসার সংসার the inane and unmeaning world, the insubstantial world. 2)

(p. 126) ālēẏā ignus fatuus, will-o'-the-wisp; (fig.) delusion. আলেয়ার আলো the light of will-o'-the-wisp; (fig.) a ray of false hope or delusion, golden dreams; insubstantial thing, optical illusion. 80)