shunned still, his sleight:

still > constantly
his sleight > [Archimago's] cunning, trickery

9 The fish that once was caught, new bait will hardly bite.

201.5

Nath'lesse th'Enchaunter would not spare his paine,
2 In hope to win occasion to his will;
Which when he long awaited had in vaine,
4 He chaungd his minde from one to other ill:
For to all good he enimy was still.
6 Vpon the way him fortuned to meet,
Faire marching vnderneath a shady hill,
8 A goodly knight, all armd in harnesse meete,
That from his head no place appeared to his feete.

1 Natheless the enchanter would not spare his pain,

Natheless > Nevertheless
pain > efforts

2 In hope to win occasion to his will;

win > persuade, subdue, seize; _hence:_ shape
occasion > circumstances

3 Which when he long awaited had in vain,
4 He changed his mind from one to other ill:

other > another; the other

5 For to all good he enemy was still.

still > ever, always

6 Upon the way him fortuned to meet,

him > (The same construction is found at 102.12:5-6; Archimago is
the object of "meet"; the knight is the subject of "fortuned")

7 Fair marching underneath a shady hill,
8 A goodly knight, all armed in harness meet,

goodly > handsome, well-favoured; courteous, gracious; kindly
all > completely
harness > {Body-armour; suit of mail; the accoutrements of an armed
horseman}
meet > close-fitting; appropriate

9 That from his head no place appeared to his feet.

That > [So that]

201.6

His carriage was full comely and vpright,
2 His countenaunce demure and temperate,
But yet so sterne and terrible in sight,
4 That cheard his friends, and did his foes amate:
He was an Elfin borne of noble state,
6 And mickle worship in his natiue land;
Well could he tourney and in lists debate,
8 And knighthood tooke of good Sir _Huons_ hand,
When with king _Oberon_ he came to Faerie land.

1 His carriage was full comely and upright,

full > very

2 His countenance demure and temperate,

demure > sober, grave; reserved

3 But yet so stern and terrible in sight

stern > fierce

4 That cheered his friends, and did his foes amate:

That > [That it]
amate > daunt

5 He was an Elfin born of noble state,

state > {Condition or state in life}

6 And mickle worship in his native land;

mickle > much
worship > honour, renown

7