Dictionary Definition:
upa-prêṣ (upa-pra- √1. iṣ), P. -prêṣyati (Impv. 2. du. -preṣyatam) to impel AV. xviii, 2, 53
• to invite, summon (said of the Adhvaryu priest who summons the Hotṛi priest to sacrifice) AitBr. ii, 5, 6
• 8