admirable wit > wonderful skill
3 And therein all the famous history 4 Of Jason and Medea was written;
Jason and Medea > (Medea was the daughter of King Ae{e"}tes, king of Colchis, and possessed magic powers. When Jason, in the Argo, came to Colchis in quest of the golden fleece, Medea fell in love with him, helped him take it, and fled, pursued by her father. To delay her father and prevent him from overtaking the Argo, she murdered her young brother and strewed pieces of his body in the sea; these Ae{e"}tes stopped to gather. Medea was later abandoned by Jason for Cre{u"}sa, daughter of King Creon of Corinth. Medea took revenge by sending the new wife an enchanted robe, which burnt her to death when she put it on) written > scored, drawn
5 Her mighty charms, her furious loving fit,
charms > spells fit > fit; paroxysm of lunacy
6 His goodly conquest of the golden fleece,
conquest > {Booty; that which is obtained by force of arms} golden fleece > (Which was suspended in an oak tree in the Grove of Mars at Colchis, in Asia Minor, and guarded day and night by a dragon. Jason was persuaded to go on this quest by Pelias, king of Iolcus in Thessaly)
7 His falsed faith, and love too lightly flit,
falsed > counterfeited; proved false flit > shifted, altered; hence: transferred
8 The wondered Argo, which in venturous piece