1. teaching or instructing someone, especially by giving them a lesson or moral guidance
Usage: present participle of 'lesson'; somewhat archaic or formal

Examples

• The teacher was lessoning the students about proper behavior.
• She spent the afternoon lessoning her younger brother in mathematics.
• The coach was lessoning the team on teamwork and discipline.
• He found himself lessoning others based on his own mistakes.
• The mentor was lessoning the apprentice in the art of negotiation.