(p. 9) acala motionless, immobile; stationary, static (অচল তড়িত্); unwavering; firm, steady; gone out of practice, not current, obsolete (অচল প্রথা); counterfeit or forged (অচল টাকা বা নোট); that which cannot be kept going, unmaintainable (অচল সংসার); invalid; untenable (অচল যুক্তি); unserviceable (অচল ঘড়ি); impracticable (অচল প্রস্তাব); (of persons) cast off (সমাজে অচল). n. a mountain, a hill. অচল অবস্হা, অচলাবস্হা lack of progress; a deadlock, an impasse, a stalemate, standstill. ̃ন n. state of being out of practice or currency, obsoleteness. ̃নীয় a. incapable of being introduced or circulated. 44)

(p. 50) apracalana obsolescence, going out of use; obsoleteness; state of being not current; state of not being in current use. 15)