संस्‍कृतशब्‍दकोशः

Monier–Williams

अतिनिष्टन् — {ati-niṣ-ṭan} (√{tan}), (perf. Pot. 3. pl. {áti-níṣ-ṭatanyuḥ}), to penetrate (with rays) RV. i, 141, 13