Atharvaveda Samhita — Kanda 7 — Chapter 16
AV 7 16.1
बृहस्पते सवितर् वर्धयैनं ज्योतयैनं महते सौभगाय । संशितं चित् संतरं सं शिशाधि विश्व एनम् अनु मदन्तु देवाः
bṛhaspate savitar vardhayainaṃ jyotayainaṃ mahate saubhagāya | saṃśitaṃ cit saṃtaraṃ saṃ śiśādhi viśva enam anu madantu devāḥ
O Bṛhaspati, O Savitṛ, make him increase, make him shine for great good fortune; though he be whetted, whet him yet keener; let all the gods rejoice with him.
AI translation rendered from the Sanskrit, not a published edition — the model flagged this verse as uncertain
Compare with Ralph T.H. Griffith
Increase this man Brihaspati! Illume him, O Savitar, for high and happy fortune. Sharpen him thoroughly though already sharpened: with glad acclaim let all the Gods receive him.
— tr. Ralph T.H. Griffith (1895–96)