Arjuna Vavatya - Achuta O Krishna

The Bhagavad Gita is set in the very first of those 18 days of war. Arjuna was choosing Dharma and having chosen Dharma definitely Arjuna and the Pandavas would prevail. In the second half of the verse Arjuna addresses his chariotear she Krishna, he says achuta o Krishna so it's not chuta but achuta and achuta as a name for chukrishna which literally means that which is immutable or unmoving.