πείθω

peíthō - 3982

agree, assure, believe, have confidence, be (wax) conflent, make friend, obey, persuade, trust, yield

to convince (by argument, true or false); by analogy, to pacify or conciliate (by other fair means); reflexively or passively, to assent (to evidence or authority), to rely (by inward certainty)

a primary verb;