अन्वयः

याम्या दिक् southern direction, न च ज्ञायते also was not known, आग्नेयी south east, न or, वारुणी west, न or, लोकः world, युगान्ते at the end of yuga, अग्निना by fire of dissolution, दग्धः burnt, हत इव consumed, नियतः set by an order.

M N Dutt

We knew not the south, or the west, or the quarter presided over by Fire;' and the world that was still burning at the end of a Yuga, appeared (to us) as if it had been consumed quite.? १. South-east. २. The passage is obscure. This is however, all the explanation that the commentator has to give.

Summary

'I did not know which the southern direction was or the southeast or the west. It looked as if the world had been consumed by fire and dissolved, as if it was the end of the yuga.

पदच्छेदः

न	न (अव्ययः)
दिग्	दिश् (१.१)
विज्ञायते	विज्ञायते (√वि-ज्ञा प्र.पु. एक.)
याम्या	याम्य (१.१)
नाग्नेया	न (अव्ययः)–आग्नेय (१.१)
न	न (अव्ययः)
च	च (अव्ययः)
वारुणी	वारुण (१.१)
युगान्ते	युग–अन्त (७.१)
नियतो	नियत (√नि-यम् + क्त, १.१)
लोको	लोक (१.१)
हतो	हत (√हन् + क्त, १.१)
दग्ध	दग्ध (√दह् + क्त, १.१)
इवाग्निना	इव (अव्ययः)–अग्नि (३.१)

छन्दः

अनुष्टुप् [८]

छन्दोविश्लेषणम्

१	२	३	४	५	६	७	८
न	दि	ग्वि	ज्ञा	य	ते	या	म्या
ना	गे	न्या	न	च	वा	रु	णी
यु	गा	न्ते	नि	य	तो	लो	को
ह	तो	द	ग्ध	इ	वा	ग्नि	ना