FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

pisteuo πιστεύω — pist-yoo'-o — from 4102; to have faith (in, upon, or with respect to, a person or thing), i.e. credit; by implication, to entrust (especially one's spiritual well-being to Christ):--believe(-r), commit (to trust), put in trust with.

see GREEK for 4102