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".
Epistemics
Epistemics is a term coined in 1969 by the University of Edinburgh with the foundation of its School of Epistemics.