अन्वयः

जातमात्रेण as he was born, क्षुधार्तेन due to hunger, एतेन all, महात्मना great soul, सत्त्वानाम् created beings, सुबहूनिअपि being strong, सहस्राणि thousands, भक्षितानि were consumed.

M N Dutt

As soon as this high-souled one was born and was a babe, he began to devour up countless creatures by the thousand.

Summary

" As soon as he was born, he was hungry and this great soul being strong consumed thousands of created beings."

पदच्छेदः

एतेन	एतद् (३.१)
जातमात्रेण	जात (√जन् + क्त)–मात्र (३.१)
क्षुधार्तेन	क्षुध् (३.१)–आर्त (३.१)
महात्मना	महात्मन् (३.१)
भक्षितानि	भक्षित (√भक्षय् + क्त, १.३)
सहस्राणि	सहस्र (१.३)
सत्त्वानां	सत्त्व (६.३)
सुबहून्यपि	सु (अव्ययः)–बहु (१.३)–अपि (अव्ययः)

छन्दः

अनुष्टुप् [८]

छन्दोविश्लेषणम्

१	२	३	४	५	६	७	८
ए	ते	न	जा	त	मा	त्रे	ण
क्षु	धा	र्ते	न	म	हा	त्म	ना
भ	क्षि	ता	नि	स	ह	स्रा	णि
स	त्त्वा	नां	सु	ब	हू	न्य	पि