Thou miht of Jelousie wite
His fievere and his condicion,
Which is full of suspecion.
Bot wherof that this fievere groweth,
Who so these olde bokes troweth, 580
Ther mai he finden hou it is:
For thei ous teche and telle this,
Hou that this fievere of Jelousie
Somdel it groweth of sotie
P. ii. 147