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".
Medieval etymology
Etymology is the study of the origins of words. Before the beginnings of large-scale modern lexicography in the 16th century and the development of the comparative method in the 18th, a scientific etymology as modern linguistics understand it was not possible. However, grammarians had always speculated about the origins of words. There are many examples of etymology in the Bible, for example, and in the works of classical writers. In cases where the history of the words was simple, such speculations have sometimes proved correct in the light of modern scholarship, but generally they were based on superficial similarities.