उषस्

• (Vedic) IPA^(key): /u.ʂɐ́s/
• (Classical) IPA^(key): /ˈu.ʂɐs̪/

From Proto-Indo-Iranian *Hušā́s (“dawn”), from Proto-Indo-European *h₂éwsōs (“dawn”), which was also personified as a goddess of dawn in Proto-Indo-European religion. Cognate with Avestan 𐬎𐬱𐬀𐬵 (ušah), Latin Aurora/aurora, Ancient Greek Ἠώς (Ēṓs)/ἠώς (ēṓs) and possibly Old English Ēostre (whence English Easter).

उषस् • (uṣás) stem, f

1. morning light, dawn, morning (personified as the daughter of heaven and sister of the Ādityas and the night)
   • c. 1700 BCE – 1200 BCE, Ṛgveda 1.6.3:

     के॒तुं कृ॒ण्वन्न॑के॒तवे॒ पेशो॑ मर्या अपे॒शसे॑।
     सम्उषद्भि॑र्अजायथाः॥

     ketúṃ kṛṇvánnaketáve péśo maryā apeśáse.
     sámúṣádbhirajāyathāḥ.

     Mortals, you owe your daily awakening, to such an Indra, who with the rays of the morning gives sense to the senseless, and form to the formless.

2. the evening light
3. (in the dual) day and night
   • c. 1700 BCE – 1200 BCE, Ṛgveda 3.4.6:

     आ भन्द॑माने उ॒षसा॒ उपा॑के उ॒त स्म॑येते त॒न्वा॒३॒॑ विरू॑पे।
     यथा॑ नो मि॒त्रो वरु॑णो॒ जुजो॑ष॒दिन्द्रो॑ म॒रुत्वाँ॑ उ॒त वा॒ महो॑भिः॥

     ā́ bhándamāne uṣásā úpāke utá smayete tanvā̀ vírūpe.
     yáthā no mitró váruṇo jújoṣadíndro marútvām̐ utá vā máhobhiḥ.

     May the adored Day and Night, combined or separate, be manifest in bodily form, so that Mitra, Varuṇa and Indra attended by the Maruts, may rejoice us by their glories.

उषस् • (uṣás) stem, f

1. Ushas (personified as the daughter of heaven and sister of the Adityas and the night)
   • c. 1700 BCE – 1200 BCE, Ṛgveda 1.48.5:

     आ घा योषेव सूनर्य्उषा याति प्रभुञ्जती ।
     जरयन्ती वृजनं पद्वदीयत उत्पातयति पक्षिणः ॥

     ā ghā yoṣeva sūnaryuṣā yāti prabhuñjatī.
     jarayantī vṛjanaṃ padvadīyata utpātayati pakṣiṇaḥ.

     Like a good matron Uṣas comes carefully tending everything:
     Rousing all life she stirs all creatures that have feet, and makes the birds of air fly up.

2. name of a wife of Bhava or Rudra

उषस् • (uṣas) stem, n

1. daybreak, dawn, twilight

उषस् • (uṣas) stem, n

1. the outer passage of the ear

• Monier Williams (1899) “उषस्”, in A Sanskrit–English Dictionary, […], new edition, Oxford: At the Clarendon Press, →OCLC, page 220/1.
• Mayrhofer, Manfred (1992) Etymologisches Wörterbuch des Altindoarischen [Etymological Dictionary of Old Indo-Aryan]‎ (in German), volume 1, Heidelberg: Carl Winter Universitätsverlag, page 236