Markandeyapurana 26.8

Now the king, when desirous of naming the fourth son, saw Madālasā, well-behaved as she was, laughing slightly: the king, somewhat eagerly curious, spoke to her as she was laughing.

The king spoke:
“Tell me the cause of your laughter, at the very time when the name is being given. Vikrānta, Subāhu and the other Śatrumardana,—the names given by me are I think fine, suited to the kṣatriya kindred, and indicative of heroism and majesty. If these are not good, lady,—if you think this in your mind,—then do thou give a name to this my fourth son.”