Suhni was not in the least worried about Dam's wrath (for her love with Mehar). Besides she would not allow water (i.e. Dam) to spoil her embellishment (i.e. chastity). Accordingly she used to swim over the eddies which infested the river, on the dark nights for the sake of Mehar.
Note: Water has no price. When it is adulterated, it becomes spurious worthless. Besides it has the potentiality to efface the thing against which it is used. Hence the poet has aptly used this word for Dam.

Suhni fears not Dam's wrath,
She will not let the water dampen her adornment,
On dard night for Mehar the woman does the water cross.

She does not have any fear of Dum,
She is not letting water spoil makeup,
For Mehar's sake she swims whirlpools in pitch dark.