अकारादिक्षकारान्तवर्णावयवशालिनी । ॥ ३ ॥
In plain words
Her limbs are the letters themselves — every sound from a to kṣa is part of her body. In her hands, a vīṇā and a book. Come forward, goddess Sarasvatī, and keep us.
Close to the Sanskrit
She who is graced with the letters — beginning with 'a', ending with 'kṣa' — as the limbs of her body, she who holds the vīṇā and the book in her hands: may the goddess Sarasvatī come forth and protect us.