From εὖ (G2095) and a derivative of a presumed compound of περί (G4012) and ἵστημι (G2476)
from G2095 and a derivative of a presumed compound of G4012 and G2476; well standing around, i.e. (a competitor) thwarting (a racer) in every direction (figuratively, of sin in genitive case):—which doth so easily beset.