1. The early stratum consists of basic lexicon including body parts, animal names, natural features, and pronouns, while the names of cultural items (agriculture terms and words for cultural artifacts, which are reconstructable in Proto-Austroasiatic) form part of the later stratum.

3. Oliver Abeynayake has the following to say on the dating of the various books in the Khuddaka Nikaya: The texts in the early stratum date from before the second council (earlier than 100 years after Buddha’s parinibbana), while the later stratum is from after the second council, which means they are definitely later additions to the Sutta Pitaka, and that they might not have been the original teachings by the Buddha, but later compositions by disciples.