rogue
Meaning
A person who behaves in a dishonest, immoral, or criminal way.
A person or thing that behaves in an unpredictable, anomalous, or potentially dangerous way.
Behaving in a dishonest, immoral, or criminal way.
Operating outside normal or desirable controls.
Usage
He was portrayed as a charming rogue who couldn't be trusted.
The software was identified as a rogue application designed to steal data.
A rogue wave suddenly capsized the boat.
Etymology
The word 'rogue' first appeared in mid-16th century English as a slang term, likely borrowed from the underworld cant of the time, where it denoted a beggar or vagabond. Its exact origin is obscure, though some scholars suggest a possible connection to Latin 'rogare', meaning 'to beg', which would provide a logical semantic link. Over time, its meaning broadened from a specific type of dishonest wanderer to describe any deceitful or unprincipled person. This evolution from a specific social category to a general term for immoral behavior reflects the word's journey from marginal slang to a standard part of the English lexicon.
Analysis
The word 'rogue' is a simplex word of uncertain origin. It likely entered English in the 16th century as a cant term for a beggar or vagrant. Its functional role is as a complete lexical root.