konfidi

Two patterns, and keeping them apart is the whole job. Konfidi ion al iu is to hand something over into someone's keeping - a secret, a child, a task. Konfidi al iu with no object is simply to trust them. The bare root fidi covers plain reliance, so mi fidas lin and mi konfidas al li are close cousins with konfidi carrying the extra sense of putting something into their hands. From it you get konfido for trust, konfidenca for confidential and malkonfida for distrustful.