 Bopp started work on a new edition in Latin, for the following year, completed in 1832; a shorter grammar appeared in 1834.At the same time he compiled a "Sanskrit and Latin Glossary" (1830), in which, more especially in the second and third editions (1847 and 1868–71), he also took account of the cognate languages.His chief activity, however, centered on the elaboration of his "Comparative Grammar", which appeared in six parts at considerable intervals (Berlin, 1833, 1835, 1842, 1847, 1849, 1852), under the title "Vergleichende Grammatik des Sanskrit, Zend, Griechischen, Lateinischen, Litthauischen, Altslawischen, Gotischen und Deutschen" ("Comparative Grammar of Sanskrit, Zend [Avestan], Greek, Latin, Lithuanian, Old Slavonic, Gothic and German").