mayday
UK[ˈmeɪdeɪ]US[ˈmeɪdeɪ]
n
An international radio distress signal used especially by ships and aircraft.
n
A state of extreme distress or emergency.
Etymology
The word 'mayday' originates from the French phrase m'aider, meaning 'help me', itself an imperative from m'aider, 'to help me'. It was formally adopted as the international radiotelephony distress signal in 1923 due to its clarity and distinctiveness when spoken, especially over poor radio connections. The choice reflects a deliberate borrowing for its phonetic utility rather than its lexical meaning, evolving in English to signify not just the call itself but also the critical situation prompting its use.
Analysis
This is a simplex loanword adopted as a whole unit. It is not productively formed from separable English morphemes.
Examples
The pilot issued a mayday call after the engine failed.
The coastguard responded immediately to the mayday signal.
The company's financial situation was a corporate mayday, requiring immediate intervention.