Definition of enchiridion in English:

enchiridion

noun

formal
  • A book containing essential information on a subject.

    • ‘I also wrote a book on Faith, Hope, and Charity, at the request of the person to whom I addressed it, that he might have a work of mine which should never be out of his hands, such as the Greeks call an Enchiridion (Handbook).’
    directions, key, guide, recipe, specification
    View synonyms

Origin

Late Middle English: via late Latin from Greek enkheiridion, from en- within + kheir hand + the diminutive suffix -idion.

Pronunciation

enchiridion

/ˌɛnkʌɪˈrɪdɪən/