संव्यवहृsaṃvyavahṛto have intercourse or business with (instr.) Katha1s.
to have intercourse or business with (instrumental case) Katha1s.
कोशःDictionaries
Every entry for a word in Apte, Monier-Williams, Macdonell and the Dhātupāṭha, with their abbreviations spelled out, and an analysis of its forms.