अन्वयः

देवर्षिदानवैरपि even for gods, sages and Danavas, अनाधृष्यतमम् unassailable, देवम् Sun god god, अनासाद्येव not possible, भास्करोदयने near the eastern part, गिरौ on the mountain, पतिता fell down.

M N Dutt

And, not getting that god, incapable of being subdued by the deities, saints and Rākṣasas, he dropped down on the Ascending-hill. And thereat a jaw of that strong jawed one was little fractured on the rock, and he is called Hanuman in consequence.

Summary

"Unassailable even for gods, sages and Danavas to reach the Sun god, he fell down near the eastern part."

पदच्छेदः

अनाधृष्यतमं	अनाधृष्यतम (२.१)
देवम्	देव (२.१)
अपि	अपि (अव्ययः)
देवर्षिदानवैः	देव–ऋषि–दानव (३.३)
अनासाद्यैव	अन् (अव्ययः)–आसाद्य (√आ-सादय् + ल्यप्)–एव (अव्ययः)
पतितो	पतित (√पत् + क्त, १.१)
भास्करोदयने	भास्कर–उदयन (७.१)
गिरौ	गिरि (७.१)

छन्दः

अनुष्टुप् [८]

छन्दोविश्लेषणम्

१	२	३	४	५	६	७	८
अ	ना	धृ	ष्य	त	मं	दे	व
म	पि	दे	व	र्षि	दा	न	वैः
अ	ना	सा	द्यै	व	प	ति	तो
भा	स्क	रो	द	य	ने	गि	रौ