phoney
UK[ˈfəʊni]US[ˈfoʊni]
adj
Not genuine or real; intended to deceive.
n
A person or thing that is not genuine; a fake.
Etymology
The word 'phoney' entered English in the late 19th century from American slang. Its most likely origin is the British slang term 'fawney', which referred to a gilt brass ring used in a confidence trick called the 'fawney rig'. This term, in turn, is derived from the Irish word 'fáinne', meaning 'ring'. The semantic journey is clear: from a specific fake ring used to swindle people, the term broadened to describe anything or anyone that is not genuine or authentic. Its spelling was later influenced by the digraph 'ph', often used in English for words of Greek origin, giving it a false learned appearance that ironically underscores its meaning.
Analysis
The word 'phoney' is a simplex word. It is a loanword whose spelling and form were adapted as a whole into English, making its internal parts not productively segmentable using standard English morphemes.
Examples
He used a phoney accent to impress them.
The document was exposed as a phoney.
Her cheerful manner seemed completely phoney.