Can I really get scrod?
Solution 1:
The Oxford English Dictionary (subscription required) shows these historical forms for the verb screw:
Forms: 15– screw, 16 screue, 16 screwe, 16 scrud (past tense and past participle), 16–17 scrue, 16–17 skrew, 16–17 skrue.
So, the closest to scrod seems to be scrud used in the 16th century.