Sentence:  Moreover, I find there are some Words now in "French" which are turned to a Countersense ... "Cocu" is taken for one whose Wife is light, and hath made him a passive "Cuckold"; whereas <WSD>clean</WSD> contrary, "Cocu", which is the Cuckow, doth use to lay her Eggs in another Bird's Nest. 
Meaning of the word marked with <WSD> tags:  Total; utter. (still in "clean sweep")