1 "To which when she your courage has inclined
courage > spirit, heart; sexual desire
2 Through foolish pity, then her guileful bait
bait > temptation
3 She will embosom deeper in your mind,
embosom > enclose; implant
4 And for your ruin at the last await."
await > {Watch for a chance of contriving}
5 The knight was ruled, and the boatman strait
strait > strictly (if referring to the action); strict (if referring to the boatman)