tāhāṅ yei līlā, tāra 'madhya-līlā' nāma
tāra pāche līlā--'antya-līlā' abhidhāna
tāhāṅ—in those places; yei līlā—all the pastimes; tāra—of those; madhya-līlā—the middle pastimes; nāma—named; tāra pāche līlā—all the pastimes after that period; antya-līlā—last pastimes; abhidhāna—the nomenclature.
All the pastimes performed by the Lord in those places are known as the madhya-līlā, and whatever pastimes were performed after that are called the antya-līlā.
Link to this page: https://prabhupadabooks.com/cc/madhya/1/20