1] pertaining to belief
   1.a] having the power of persuading, skilful in producing belief
   1.b] trusty, faithful, that can be relied on
derivation: from (4102)
http://bible1.crosswalk.com/Lexicons/Greek/grk.cgi?number=4101&version=kjv

(4102)
1] conviction of the truth of anything, belief; in the NT of a conviction or belief respecting man's relationship to God and divine things, generally with the included idea of trust and holy fervour born of faith and joined with it
   1.a] relating to God
       1.a1] the conviction that God exists and is the creator and ruler of all things, the provider and bestower of eternal salvation through Christ
   1.b] relating to Christ
       1.b.1] a strong and welcome conviction or belief that Jesus is the Messiah, through whom we obtain eternal salvation in the kingdom of God
   1.c] the religious beliefs of Christians
   1.d] belief with the predominate idea of trust (or confidence) whether in God or in Christ, springing from faith in the same
2] fidelity, faithfulness
   2.a] the character of one who can be relied on
derivation: from (3982)
http://bible1.crosswalk.com/Lexicons/Greek/grk.cgi?number=4102&version=kjv

{3982)
1] persuade
   1.a] to persuade, i.e. to induce one by words to believe
   1.b] to make friends of, to win one's favour, gain one's good will, or to seek to win one, strive to please one
   1.c] to tranquillize
   1.d] to persuade unto i.e. move or induce one to persuasion to do something
2] be persuaded
   2.a] to be persuaded, to suffer one's self to be persuaded; to be induced to believe: to have faith: in a thing
       2.a.1] to believe
       2.a.2] to be persuaded of a thing concerning a person
   2.b] to listen to, obey, yield to, comply with
3] to trust, have confidence, be confident
derivation: a primary verb
http://bible1.crosswalk.com/Lexicons/Greek/grk.cgi?number=3982&version=kjv