Caitanya-caritāmṛta 5.81
sṛṣṭy-ādi-nimitte yei aṁśera avadhāna sei ta’ aṁśere kahi ‘avatāra’ nāma
[srishty-aadi-nimitte yei amshera avadhaana sei ta’ amshere kahi ‘avataara’ naama]
Blended reading (Sanskrit + English inline)
sṛṣṭy-ādi-nimitte yei aṁśera avadhāna sei ta’ aṁśere kahi ‘avatāra’ nāma
That fragment of the Supreme Lord, known as the Mahā-puruṣa, appears for the purpose of creation, maintenance and annihilation and is called an incarnation.
My note
Source: vedabase.io