INCANTATION

incantation, conjuration

(noun) a ritual recitation of words or sounds believed to have a magical effect

Source: WordNet® 3.1

Etymology

Noun

incantation (plural incantations)

The act or process of using formulas and/or usually rhyming words, sung or spoken, with occult ceremonies, for the purpose of raising spirits, producing enchantment, or creating other magical results.

A formula of words used as above.

(computing, slang) Any esoteric command or procedure.

Source: Wiktionary

In`can*ta"tion, n. Etym: [L. incantatio, fr. incantare to chant a magic formula over one: cf. F. incantation. See Enchant.]

1. The act or process of using formulas sung or spoken, with occult ceremonies, for the purpose of raising spirits, producing enchantment, or affecting other magical results; enchantment. "Mysterious ceremony and incantation." Burke.

2. A formula of words used as above.

Source: Webster’s Unabridged Dictionary 1913 Edition