A.N.A.N.I.S.A.P.T.A.

From BiblePortal Wikipedia

A.N.A.N.I.S.A.P.T.A. [1]

(ananisapta) are the initial letters of the following words: Antidoton Nazareni Auferat Necen Intoxationes, Sanctificet Alimenta Pocula Trinitas Alma. This acrostic word is an amulet, which, according to the superstitions of former times, was said to do good service, especially against toothache. It had to be carried around the neck. Even to speak the word Ananisapta three times was often quite sufficient.

References