<!doctype html public «-//w3c//dtd html 4.0 transitional//en»> http-equiv=content-type content="text/html; charset=iso-8859–1"> For the first time in the history of research both in Spanish and German linguistics, this book undertakes a comparative study ofthe lexical structures commonly understood as ‘word families’ and the theoretical and methodological basesof their analysis.Using the word families derived from dec(ir) and sag(en) as a main reference point, thestudy discusses differenttheoretical approaches and positions.