Cākṣuṣa–Vaivasvata Manvantara Transition, Deva-Gaṇa Taxonomy, and Loka-Triad Etymology
Bhūr–Antarikṣa–Dyu
भू सत्तायां स्मृतो धातुस्तथासौ लोकदर्शने / भूतत्वाद्दर्शनाच्चैव भूर्लोको ऽयमभूत्ततः
bhū sattāyāṃ smṛto dhātustathāsau lokadarśane / bhūtatvāddarśanāccaiva bhūrloko 'yamabhūttataḥ
The root “bhū” is remembered in the sense of “existence”, and it is so known in worldly understanding. Because it is ‘bhūta’ and because it is seen, this Bhūrloka came to be.