These terms are from the Pāli (or Pāḷi) language, which was used to write many of the earliest extant Buddhist scriptures, as collected in the Pāḷi Canon or Tipitaka, and as the liturgical language of Theravada Buddhism. For additional resources on the Pāli language see:
- John Bullitt's page A Glossary of Pali and Buddhist Terms.
- The Pali Text Society's Pali-English Dictionary.
- Charles Duroiselle's Practical Grammar of the Pali Language at Buddhanet.net.