nonplus
UK[nɒnˈplʌs]US[nɑːnˈplʌs]
v
To cause (someone) to be so surprised or confused that they are unsure how to react.
n
A state of being very surprised and confused.
Morpheme Breakdown
non
plus
non
not
plus
more
Etymology
The word "nonplus" entered English in the late 16th century from the Latin phrase 'non plus', literally meaning "no more." This phrase was used to describe a state where one could proceed no further in an argument or action. The original sense was of a point in a logical debate where no further argument could be made, leaving a person at a standstill. Over time, this specific logical impasse broadened into the modern, more general meaning of a state of perplexity or bewilderment that stops one in their tracks.
Analysis
Structure: non (not) + plus (more)
- non: Latin origin, a negative prefix meaning "not."
- plus: Latin origin, meaning "more."
Examples
The student's unexpected question completely nonplussed the professor.
She was in a state of utter nonplus when her plan failed spectacularly.
His sudden resignation left the entire board nonplussed.