noun: a critical, introductory discussion, especially an introduction to a text.
From Greek prolegómenon, from prolegein (to say beforehand), from pro- (before) + legein (to say). Ultimately from the Indo-European root leg- (to collect, speak), which is also the source of other words such as lexicon, lesson, lecture, legible, legal, legend, select, alexia, cull, lection, ligneous, lignify, subintelligitur, and syllogistic. Earliest documented use: 1600
Usage (from Wordsmith)
“With a witty and intriguing prolegomenon by Ashis Nandy, the book includes 76 poems that are travelogues of exile, identity, and adolescent fantasy of belonging and abandonment, portraying everyday struggles of existence.”
A Lyrical Celebration; Financial Express (New Delhi, India); Dec 28, 2014.