πίστις
pistis
pis'-tis
From G3982; persuasion, that is, 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
G4100 πιστεύωπιστεύω
pisteuō
pist-yoo'-o
From G4102; to havefaith (in, upon, or with respect to, a person or thing), that is, credit; by implication to entrust (especially one’s spiritual well being to Christ)
KJV Usage: believe (-r), commit (to trust), put in trust with.
G4101 πιστικόςπιστικός
pistikos
pis-tik-os'
From G4102; trustworthy, that is, genuine (unadulterated)