Tag Trimurthi

Gotra Of Shiva Vishnu Brahma

The term Vishnu is from the Sanskrit root Jishnu

'Vishnum Jishnum Mahavishnum prabha Vishnum Maheswaram' Vishnu Sahasranama.

Jishnum means 'supporting,supportive'

As Vishnu is the Protector and supports the Universe,he is called Vishnu.