Name #489 of 1000 · Viṣṇu Sahasranāma
भूतमहेश्वरःbhūtamaheśvaraḥ
Bhutamaheshvara
The great lord of all beings
From shloka 52 · chapter Vāmana
गभस्तिनेमिः सत्त्वस्थः सिंहो भूतमहेश्वरः ।
आदिदेवो महादेवो देवेशो देवभृद्गुरुः ॥
gabhastinemiḥ sattvasthaḥ siṃho bhūtamaheśvaraḥ
ādidevo mahādevo deveśo devabhṛdguruḥ
Also in this shloka: gabhastinemiḥ · sattvasthaḥ · siṃhaḥ · ādidevaḥ · mahādevaḥ · deveśaḥ · devabhṛdguruḥ