upa-draṣṭṛ́ ṭā m. a looker-on, spectator

• a witness AV. xi, 3, 59 TS. ŚBr. ĀśvŚr. Kāṭh. BhP. &c

• (upa-dráṣṭṛkā), f. a female witness MaitrS. iii, 2, 4