One of the three components of the Tripadī (the triplet of origination, cessation and persistence); the origination of a new state or mode (the emerging mode) of a substance is called Utpāda. E.g., origination of a lump of soil into the form (mode) of a pot.
cetanasyācetanasya vā dravyasya syāṃ jātimajahata ubhayanimattivaśād bhāvāntarāvāptirutpādanamutpādaḥ, mṛtpiṇṛasya ghaṭaparyavat.(Sasi 5.30)
dravyanayābhiprāyenākārāntarāvirbhāvamātramutpāda aupacārikaḥ, parmārthato na kiñcidutpadyate satatamavasthitadravyāṃśamātratvāt.(TaBhā 5.29 Vṛ)
ege uppā......uppa tti prākṛtatvādutpādaḥ, sa caika ekasamaye ekaparyāyāpekṣayā, na hi tasya yngapadutpādavyayādirasti.(Sthā. 22 Vṛ Pa 19)
- Tripadī.