One who fears; a person who experiences or expresses fear or dread.
From 'fear' plus the agent noun suffix '-er,' which indicates someone who performs the action of the verb. Similar to how 'teach' becomes 'teacher,' 'fear' becomes 'fearer.'
The Bible is full of 'fearers of God,' making this word particularly loaded with religious meaning in English—it's less a neutral 'someone afraid' and more a specific spiritual identity tied to piety and reverence.
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