abhiṣad

abhi-ṣad (√ sad), -sīdati to besiege, RV. ix, 7, 5; Ved. (impf.) -aṣīdat, or -asīdat, &c., Pāṇ. viii, 3, 119, in classical Sanskṛt only forms with ṣ are allowed, Pāṇ. viii, 3, 63 and 118.