1 The knight, approaching nigh, thus to her said, 2 "Fair lady, through foul sorrow ill-bedight,
ill-bedight > ill-adorned; hence: disfigured
3 Great pity is to see you thus dismayed, 4 And mar the blossom of your beauty bright;
mar > [to see you mar]
5 For-thy appease your grief and heavy plight,
For-thy > For this reason, therefore appease > desist from, check
6 And tell the cause of your conceived pain:
conceived > {Taken or admitted into the mind; also: apparent, hence: self-evident}
7 For if he live, that has you done despite,
live > [lives; the subjunctive here is all but obsolete] despite > outrage