3 In whose fair eyes, like lamps of quenched fire, 4 The crystal humour stood congealed round;

humour > moisture, fluid

5 His locks, like faded leaves fallen to ground, 6 Knotted with blood, in bunches rudely ran,

rudely > roughly, crudely ran > [flowed, were arranged]

7 And his sweet lips, on which before that stound

stound > {Time of trial or pain; chiefly in northern dialect}

8 The bud of youth to blossom fair began,

fair > fairly, becomingly

9 Spoiled of their rosy red, were waxed pale and wan.

Spoiled > Stripped, deprived waxed > grown