The formation of words whose sound is imitative of the sound of the noise or action designated, such as 'buzz' or 'murmur'.
The word 'buzz' is an example of echoism, as it mimics the sound it describes.
A personality trait marked by an extreme reluctance to draw attention to oneself, an excessive focus on others' needs, and a fear of appearing narcissistic.
Her echoism made her uncomfortable whenever the conversation shifted to her own accomplishments.