Rigveda 8.89.5

यज्जाय॑था अपूर्व्य॒ मघ॑वन्वृत्र॒हत्या॑य ।तत्पृ॑थि॒वीम॑प्रथय॒स्तद॑स्तभ्ना उ॒त द्याम्॥

yajjāyathā apūrvya maghavanvṛtrahatyāya |tatpṛthivīmaprathayastadastabhnā uta dyām ||

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