संस्‍कृतशब्‍दकोशः

अध्यग्नि

विवाह पर अग्नि के समीप मिला धन

that wealth which a woman gets near fire at her marriage

Monier–Williams

अध्यग्नि — {adhy-agni} ind. over or by the nuptial fire (property given to the bride)