one-trick

The compound adjective "one-trick" is a modern formation, originating in the mid-20th century from the literal combination of the numeral "one" and the noun "trick." Its logic is transparently metaphorical, drawing from the vocabulary of performing animals or entertainers known for executing only a single, repetitive act. While "trick" itself evolved from a sense of deceit or clever stratagem (from Old French, possibly of Germanic origin), in this compound, it semantically shifted to denote a specialized skill or performance piece. The term thus critiques a lack of adaptability by implying that, like a limited performer, the subject possesses only one effective resource or talent.

Structure: one (single) + trick (skill/deception) - one: From Old English 'ān', meaning a single unit or thing. It functions as a numeral adjective modifying the noun. - trick: From Old French 'trique', meaning a deceit or stratagem. It functions as a noun, here representing a specific skill or act.