Strong's #4740: sterigmos (pronounced stay-rig-mos')
from 4741; stability (figuratively):--stedfastness.
Thayer's Greek Lexicon:
́
stērigmos
1) firm condition, steadfastness: of mind
Part of Speech: noun masculine
Relation: from G4741
Citing in TDNT: 7:653, 1085
Usage:
This word is used 1 times:
2 Peter 3:17: "wicked, fall from your own steadfastness."