a person who habitually makes others or things seem small, unimportant, or worthless.
From 'belittle' with the suffix '-er,' a productive suffix that creates agent nouns (people who do something). This pattern appears in words like 'teacher,' 'player,' and 'listener.'
Adding '-er' to a verb instantly creates a word for a person who does that thing—'belittler' is someone habitually diminishing others. English's efficiency here is remarkable: one tiny suffix creates job descriptions!
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