The only free and comprehensive online etymological dictionary of the Spanish language
conversar (Verb) "to converse"
From Latin conversari 'id.' From convertere "to exchange" (see convertir).
Indo-European
Romance
Portuguese converter, French convertir, Italian convertire, convergere
Real Academia Española. Diccionario de la lengua española. Online. 23rd ed. Madrid: Espasa Calpa. 2014. http://www.rae.es/.
Sihler, A. New Comparative Grammar of Greek and Latin. Oxford University Press. 2008.