Episteme
"Episteme" is a philosophical term derived from the Ancient Greek word ἐπιστήμη "epistēmē", which can refer to knowledge, science or understanding, and which comes from the verb , meaning "to know, to understand, or to be acquainted with".
Encyclopedia
The word "encyclopedia" comes from the Koine Greek , transliterated "enkyklios paideia", meaning "general education" from "enkyklios" (ἐγκύκλιος), meaning "circular, recurrent, required regularly, general" and "paideia" (παιδεία), meaning "education, rearing of a child"; together, the phrase literally translates as "complete instruction" or "complete knowledge". However, the two separate words were reduced to a single word due to a scribal error by copyists of a Latin manuscript edition of Quintillian in 1470. The copyists took this phrase to be a single Greek word, "enkyklopaidia", with the same meaning, and this spurious Greek word became the New Latin word "encyclopaedia", which in turn came into English. Because of this compounded word, fifteenth century readers and since have often, and incorrectly, thought that the Roman authors Quintillian and Pliny described an ancient genre.