a. Of exceptions may be noted: √mṛj has (as elsewhere: 627) vṛddhi instead of guṇa: thus, amārjiṣam; √stṛ has astarīs, and √çṛ has açarīt (also açarāit in AV.), withguṇa in active.

b. The root grabh or grah has (as in future etc., below, 936 e, 956) long ī instead of i before the sibilant: thus, agrabhīṣma, agrahīṣṭa, agrabhīṣata. The roots in changeable ṛ(so-called roots in ṝ: 242), and √vṛ are said by the grammarians to do the same optionally; but no forms with long ī from such roots have been found quotable. A Sūtra (PGS.) has onceanayīṣṭa from √nī (doubtless a false reading).