The comparative method in Semitic Linguistics

TL;DR: The comparative method begins with vocabulary, usually basic vocabulary, and the recognition of cognates across the languages compared, and proceeds to isolate systematic yet essentially nonmotivated correspondences that recur among the compared languages and to present these correspondences in an economical yet linguistically natural formula.

Abstract: "The comparative method is a set of techniques, developed over more than a century and a half, that permits us to recover linguistic constructs of earlier, usually unattested, stages in a family of related languages." It begins with vocabulary, usually basic vocabulary, and the recognition of cognates across the languages compared. It then proceeds to isolate systematic yet essentially nonmotivated correspondences that recur among the compared languages and to present these correspondences in an economical yet linguistically natural formula. The comparison may focus on practically any linguistic level, though it is perhaps most familiar as a tool for phonological and morphological analysis. The comparative method is a proven set of linguistic techniques that linguists and Semitists jointly apply with great success. The goals of the comparative method are as familiar as the method itself. Stated simply, comparative linguists seek