From वि- (vi-, “in different directions, about”) + उष् (uṣ, “dawn”) from Proto-Indo-European *h₂ús (“dawn”).
व्युष् • (vyúṣ) stem, f (metrical Vedic viyúṣ)
- dawn, daybreak
- Synonyms: उषस् (uṣas), उष् (uṣ), व्युष्टि (vyuṣṭi)
c. 1700 BCE – 1200 BCE,
Ṛgveda 5.3.8:
- त्वामस्या व्युषि देव पूर्वे दूतं कृण्वाना अयजन्त हव्यैः ।
- tvāmasyā vyuṣi deva pūrve dūtaṃ kṛṇvānā ayajanta havyaiḥ.
- At this dawn's breaking, O deity, our ancient fathers served thee with offerings, making thee their envoy.