Someone or something that encourages, gives hope to, or lifts the spirits of another person.
Derived from 'hearten' (to give courage or hope to) plus the agent suffix '-er' (one who does the action). The term follows standard English patterns for creating nouns that describe people who perform specific actions.
A 'heartener' is basically a professional hope-giver—coaches, teachers, therapists, and good friends all function as hearteners. It's a beautifully archaic term that deserves to be used more often for people who lift us up.
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