Rigveda 8.13.18

त्रिक॑द्रुकेषु॒ चेत॑नं दे॒वासो॑ य॒ज्ञम॑त्नत ।तमिद्व॑र्धन्तु नो॒ गिर॑: स॒दावृ॑धम्॥

trikadrukeṣu cetanaṃ devāso yajñamatnata |tamidvardhantu no gira: sadāvṛdham ||

Our plain-language meaning of this verse is waiting for scholar review.