mantra

Concise Oxford English Dictionary © 2008 Oxford University Press:
mantra /ˈmantrə/

▶noun

• 1 (originally in Hinduism and Buddhism) a word or sound repeated to aid concentration in meditation.

• 2 a Vedic hymn.

• 3 a statement or slogan repeated frequently.

– derivatives
mantric adjective.

– origin C18: Sanskrit, lit. ‘instrument of thought’, from man ‘think’.