Historical linguistics is a historical discipline, and the writing up of hypotheses about past states of languages in the form of etymologies and diachronic grammars is a type of historiography (Lass 1997: 17). The assertions contained in the preceding sentence seem tautological, yet surprisingly few practitioners of historical linguistics take an interest in current debates among historians, philosophers, and some anthropologists, over the nature of history as a social science, and the appropriate methods for reconstructing elements of the past and expressing them in writing. The focus of this chapter will be on etymology, as history and as historiography. Far from being a marginal antiquarian diversion for a handful of philological puzzle-solvers, etymological research operates along the fault-line separating the natural and human sciences, and for this reason alone an examination of etymological methodology and argumentation will be of interest to anthropologists working in this interstitial zone.

Throughout this chapter, I am intentionally employing the word “historiography” in its older sense, as defined in the OED: “the writing of history.” The choice is motivated by my intention to distinguish “history” (or historical reconstruction) as a type of reasoning, from the process of writing it up for the purpose of publication. The critical study of historical linguistics as a historical discipline is concerned with fundamental issues akin to those Wylie (1985: 483) identified for the neighboring field of archaeology: