Somme putten hem to the plough / pleiden ful selde,
In settynge and sowynge / swonken ful harde,
And wonnen that thise wastours / with glotonye destruyeth.
The usual interpretation of the last phrase, I think, is wrong. "wonnen" disrupts this sentence; generally interpreted as 'to be, dwell, at a place', which doesn't work.
"wannen", to become livid, or "winnen", cause to suffer, do.