This supplement to the »Dictionnaire onomasiologique de l'ancien occitan (DAO)« and the »Dictionnaire onomasiologique de l'ancien gascon (DAG)« contains the alphabetic indexes to the material edited in the fascicles which have appeared so far under the subject headings (A) L'univers: (I) Le ciel et l'atmosphère, (II) La terre, and (III) Les plantes, after Hallig-Wartburg. The comprehensive Occitan/Gascon index is supplemented by indexes for Middle Latin, regional French and the relevant etyma, plus a summarized overview of the word indexes. As such this volume represents an instrumentarium providing users with convenient access to the two onomasiological dictionaries.