Mahabharata 2.48.33

सर्वे म्लेच्छाः सर्ववर्णा आदिमध्यान्तजास्तथानानादेशसमुत्थैश्च नानाजातिभिरागतैःपर्यस्त इव लोकोऽयं युधिष्ठिरनिवेशने

sarve mlecchāḥ sarvavarṇā ādimadhyāntajāstathānānādeśasamutthaiśca nānājātibhirāgataiḥparyasta iva loko'yaṃ yudhiṣṭhiraniveśane

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