Don't risk it, get a lawyer. The last thing you want is to create a recognised brand only to have to change the name because you saved some money by not checking.
And what if getting recognized as the brand involved in a trademark conflict about the name of a Greek mythological figure is a risk we're totally willing to take?
That's some bravado. To make the case more poignant, you should also open an online shoe store at http://ni.ke