Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD ORIGIN

late 14c., "process of understanding, reasoning, thought," from French discours, from Latin discursus "a running about," in Late Latin "conversation," from past participle stem of discurrere "run about," from dis- "apart" (see dis-) + currere "to run" (see current (adj.)). Sense of "formal speech or writing" is first recorded 1580s.

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.