in > [at; he refers to the empty skin (see 108.24:9)]

4 And lo that wicked woman in your sight, 5 The root of all your care and wretched plight,

care > sorrow

6 Now in your power, to let her live, or die." 7 "To do her die," quoth Una, "were despite,

do her die > put her to death were > [would be] despite > [an act of] spite, malice

8 And shame to avenge so weak an enemy;

avenge > punish, take vengeance upon

9 But spoil her of her scarlet robe, and let her fly."

spoil > strip (with less sense of violence than modern usage implies) scarlet > (Also the colour of her sins: heinous, deep-dyed (Isa. 1.18)) fly > flee

108.46