instiller

/ɪnˈstɪlər/
noun
  1. A person or thing that gradually introduces or imparts something (such as an idea, feeling, or quality) into someone's mind.
    • The coach acted as an instiller of confidence in the young athletes.
    • Nature can be a powerful instiller of peace and wonder.
    • Her grandmother was the instiller of a deep love for reading in her.
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