Name #678 of 1000 · Viṣṇu Sahasranāma
महाहविःmahāhaviḥ
Mahahavi
The supreme oblation — the whole universe offered
From shloka 72 · chapter Rāma
महाक्रमो महाकर्मा महातेजा महोरगः ।
महाक्रतुर्महायज्वा महायज्ञो महाहविः ॥
mahākramo mahākarmā mahātejā mahoragaḥ
mahākraturmahāyajvā mahāyajño mahāhaviḥ
Also in this shloka: mahākramaḥ · mahākarmā · mahātejāḥ · mahoragaḥ · mahākratuḥ · mahāyajvā · mahāyajñaḥ