Thereat > Thereupon; as a result of that in privity > privately
2 And turned his face away; but she the same 3 Dissembled fair, and fained to oversee.
fair > courteously; expertly fained > feigned; or: was pleased oversee > overlook
4 Thus they awhile with court and goodly game
court > {Courteous or amorous attention} goodly > courteous, gracious; fine, elevated game > amusement
5 Themselves did solace each one with his dame,
solace > entertain
6 Till that great lady thence away them sought,
sought > invited
7 To view her castle's other wondrous frame.