Withdrawal

उपरमः कः? स्वधर्मानुष्ठानमेव ।

uparamaḥ kaḥ? svadharmānuṣṭhānameva |

What is uparama? The steady keeping of one's own duty.

In plain words

What is uparama (withdrawal)? The faithful performance of one's own duty (svadharma).