From Middle English abnormal, from Latin abnormis, from ab- (away from) + norma (rule).
Meaning:
Deviating from what is normal or standard; unusual; irregular.
Origin:
The term "abnormal" has been used in medical contexts since at least the 17th century, when it was used to describe medical conditions that did not conform to the typical patterns of disease.
Over time, the term came to be used more broadly to describe anything that deviated from what was considered normal or standard.
In the 19th century, the term "abnormal psychology" was coined to refer to the study of mental illnesses and disorders.
Today, the term "abnormal" is used in a wide range of contexts, from medicine and psychology to sociology and education.
