Bible Theasaurus

Genuinely (7 instances)
Really (292 instances)
Rightfully (6 instances)
Sincerely (15 instances)

Reverse Interlinear

Strong's
Root Form
Definition
Usage
πιστεύω 
Pisteuo 
believe , commit unto , commit to trust , be committed unto , be put in trust with , be commit to one's trust , believer
Usage: 163