RV 10.66.1
देवान् हुवे बृहच्छ्रवसः स्वस्तये ज्योतिष्कृतो अध्वरस्य प्रचेतसः । ये वावृधुः प्रतरं विश्ववेदस इन्द्रज्येष्ठासो अमृता ऋतावृधः ॥
devān huve bṛhacchravasaḥ svastaye jyotiṣkṛto adhvarasya pracetasaḥ | ye vāvṛdhuḥ prataraṃ viśvavedasa indrajyeṣṭhāso amṛtā ṛtāvṛdhaḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
I CALL the Gods of lofty glory for our weal, the makers of the light, well-skilled in sacrifice; Those who have waxen mightily, Masters of all wealth, Immortal, strengthening Law, the Gods whom Indra leads.
Translated by Ralph T. H. Griffith (1896)