To stop imitating; to cease copying or mimicking someone or something.
From dis- (away, reverse) + imitate (from Latin imitari, 'to copy'). This follows the standard English pattern of 'dis-' verbs that reverse or negate the root action.
What's fascinating is that we rarely use 'disimitate'—instead we say 'be yourself' or 'stop copying'—which suggests that English speakers instinctively prefer positive instructions over negative reversals when it comes to behavior change.
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