wonned > dwelt

2 That hight Phantastes by his nature true;

hight > was named Phantastes > "Fantast", "Visionary" (Greek: literally, "Boaster")

3 A man of years, yet fresh as might appear, 4 Of swarth complexion, and of crabbed hue,

swarth > swart, swarthy crabbed > churlish, irritable hue > appearance

5 That him full of melancholy did show;

melancholy > {Black bile, one of the four chief humours or fluids whose proportions in the body, according to medieval physiology, determine one's constitution} show > [reveal to be]

6 Bent hollow beetle brows, sharp staring eyes,

staring > staring; glaring

7 That mad or foolish seemed: one, by his view, 8 Might deem him born with ill-disposed skies,