5 in > it 1590 etc.: FE
1 As when a ship, that flies fair under sail, 2 A hidden rock escaped has unwares,
unwares > unwittingly
3 That lay in wait her wreck to bewail,
bewail > ?cause, ?choose, ?mourn (perhaps an error)
4 The mariner yet half amazed stares 5 At peril past, and yet in doubt neither dares
doubt > fear
6 To joy at his fool-happy oversight:
joy > rejoice fool-happy > lucky
7 So doubly is distressed 'twixt joy and cares 8 The dreadless courage of this Elfin knight,