From Wiktionary, the free dictionary
From સાંભળતું (sā̃bhaḷtũ) + -વેંત (-vent).
સાંભળતાંવેંત • (sā̃bhaḷtā̃vent)
- upon hearing, having heard; as soon as one hears
- આ શબ્દ સાંભળતાંવેંત જ ભય ફેલાય ― ā śabd sā̃bhaḷtā̃vent ja bhaya phelāya ― just upon hearing this word fear spreads