Lexical Definition

‎εὐπερίστατος‎ euperístatos (yoo-per-is'-tat-os) thwarting ^G:A
from ‎εὖ‎ and a derivative of a presumed compound of ‎περί‎ and ‎ἵστημι‎

which doth so easily beset.

• well standing around, i.e. (a competitor) thwarting (a racer) in every direction (figuratively, of sin in genitive case)

Abbott-Smith

* εὐ-περί-στατος, -ον (< εὖ, περιΐστημι),
of sins, readily besetting: He 12:1 (on form and sense of the word, v. Westc., in l.).†

Abbott-Smith References

Liddell-Scott-Jones

εὐπερίστατος-στᾰτος, ον,

easily besetting, ἁμαρτία [NT]; perhaps leading to distress, compare περίστασις; εὐπερίστατοςστατον, ={εὔκολον},{εὐχερῆ}, [Refs 5th c.AD+]

_{LSJ Scripture Refs: Heb.12.1}