Definition of "perfectest"

For as Fire, the perfectest of Elements, and Heaven, the perfectest of Bodies; so the Soule of Man, the perfectest of formes, hath the most vehement motion.

1640, Edward Reynolds, A treatise of the passions and faculties of the soule of man

Thou perfectest its body, it breaks the shell from inside, it comes out of the egg, it chirps with all its might, having come forth it walks on its two feet. O how many are the things which thou hast made!

1885, Sir Ernest Alfred Thompson Wallis Budge, The Dwellers on the Nile