Greek word
pístis
πίστις
What it means
persuasion, i.e. credence
persuasion, i.e. credence; moral conviction (of religious truth, or the truthfulness of God or a religious teacher), especially reliance upon Christ for salvation; abstractly, constancy in such profession; by extension, the system of religious (Gospel) truth itself
Where it comes from
from peíthō (πείθω)