"Moron" "imbecile" "idiot"

"Moron" "imbecile" "idiot"

"Moron" was coined in 1910 by psychologist Henry H. Goddard
from the Ancient Greek word μωρός (moros),
which meant "dull"[4] (as opposed to "sharp"),

...It was once applied to people with an IQ of 51-70,
being superior in one degree to "imbecile" (IQ of 26-50)
and superior in two degrees to "idiot" (IQ of 0-25).

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