A person or thing that exalts; someone who raises another person in rank, dignity, or spirits.
From exalt + -er suffix (forming agent nouns for those who perform an action). This follows the pattern of teacher, builder, and painter, identifying the active agent.
Agent nouns with -er are one of English's oldest word-making tricks—they date back to Old English and show up in virtually every occupation and role, making them a window into what jobs and actions mattered to speakers!
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