mahāmantra | महामन्त्र | mahAmantra
mahā—mantra | महा—मन्त्र | m. any very sacred or efficacious text (of the Veda &c.), MW.
a great spell, very eff˚ charm (used esp. against a serpent's venom), Kād.; Gīt.
a great spell, very eff˚ charm (used esp. against a serpent's venom), Kād.; Gīt.