The word for today is…
epistemological (noun) – The branch of philosophy that examines the nature of knowledge, its presuppositions and foundations, and its extent and validity.
Source : The Free Dictionary
Etymology : “Theory of knowledge,” 1856, coined by Scottish philosopher James F. Ferrier (1808-1864) from Greek episteme “knowledge, acquaintance with (something), skill, experience,” from Ionic Greek epistasthai “know how to do, understand,” literally “overstand,” from epi “over, near” + histasthai “to stand,” from PIE root *sta- “to stand, make or be firm.” The scientific (as opposed to philosophical) study of the roots and paths of knowledge is epistemics (1969).
