No man shall stop me of this glorying (h kauchsi auth ou praghsetai ei eme). More exactly, "This glorying shall not be fenced in as regards me." Second future passive of prassw, to fence in, to stop, to block in. Old verb, only here in N.T. In the regions of Achaia (en toi klimasin th Acaia). Klima from klinw, to incline, is Koin word for declivity slope, region (our climate). See chapter 1 Corinthians 9:1 ff. for Paul's boast about preaching the gospel without cost to them.