Epistemological psychology
The term episteme is related to the Greek word επιστήμη, which translates literally as "standing near or by that which causes" but is often simplified as "knowledge" or "science". By ignoring ego interests the core impetus or the essence of a deed, real or imagined, is recovered.
Etymologiae
Book X is a word-list of nouns and adjectives, together with supposed etymologies for them. For example, the letter 'D' begins with the word for master ("Dominus"), as he is the head of a household ("Domus"); the adjective docile ("docilis") is derived by Isidore from the verb for "to teach" ("docere"), because docile people are able to learn; and the word for abominable ("Nefarius") is explained as being not worth the grain called spelt ("Far").