अन्वयः

 य: which ever, समाक्षरै: with equal number of syllables, चतुर्भि: by four, पादै: parts, महर्षिणा by maharshi, गीत: as told, स: श्लोक: that sloka, अनुव्याहरणात् because of repeated recitation, भूय: again, श्लोकत्वम् gloriousness, आगत: attained. by maharshi, गीत: as told, स: श्लोक: that sloka, अनुव्याहरणात् because of repeated recitation, भूय: again, श्लोकत्वम् gloriousness, आगत: attained.

M N Dutt

Those verses, composed of equal accents, and furnished with four parts, have been sung by the great saint, have, in virtue of frequent repetition, been associated with a world of pathos and have attained the eminence of a sloka.

Summary

This sloka of four lines, each consisting of equal number of syllables, was recited by the maharshi. Constant recitation (by others) elicited admiration (from the listeners).

पदच्छेदः

समाक्षरैश्	सम–अक्षर (३.३)
चतुर्भिर्	चतुर् (३.३)
यः	यद् (१.१)
पादैर्	पाद (३.३)
गीतो	गीत (√गा + क्त, १.१)
महर्षिणा	महत्–ऋषि (३.१)
सो	तद् (१.१)
ऽनुव्याहरणाद्	अनुव्याहरण (५.१)
भूयः	भूयस् (अव्ययः)
शोकः	शोक (१.१)
श्लोकत्वम्	श्लोक–त्व (२.१)
आगतः	आगत (√आ-गम् + क्त, १.१)

छन्दः

अनुष्टुप् [८]

छन्दोविश्लेषणम्

१	२	३	४	५	६	७	८
स	मा	क्ष	रै	श्च	तु	र्भि	र्यः
पा	दै	र्गी	तो	म	ह	र्षि	णा
सो	ऽनु	व्या	ह	र	णा	द्भू	यः
शो	कः	श्लो	क	त्व	मा	ग	तः