Mahabharata 12.186.24

त्वंकारं नामधेयं च ज्येष्ठानां परिवर्जयेत्अवराणां समानानामुभयेषां न दुष्यति

tvaṃkāraṃ nāmadheyaṃ ca jyeṣṭhānāṃ parivarjayetavarāṇāṃ samānānāmubhayeṣāṃ na duṣyati

Our plain-language meaning of this verse is waiting for scholar review.