one-two
UK[ˌwʌn ˈtuː]US[ˌwʌn ˈtuː]
n
A quick sequence of two punches, especially in boxing.
n
A combination of two actions or items considered as a pair.
Etymology
The term 'one-two' is a modern English compound, formed by combining the cardinal numbers 'one' and 'two' to denote a sequence. The numbers themselves have ancient origins: 'one' derives from Old English 'ān', from Proto-Germanic 'ainaz', ultimately from Proto-Indo-European 'óynos'. 'Two' comes from Old English 'twā', from Proto-Germanic 'twai', from PIE 'dwóh₁'. In the specific combative sense, the logic is purely numerical and sequential, representing the first and second in a rapid series, most famously applied to a left-hand jab immediately followed by a right-hand cross in boxing. This concrete, literal pairing has been extended metaphorically to describe any effective, rapid combination of two elements.
Analysis
This is a compound word formed from two simplex English number words.
Examples
The boxer finished the match with a powerful one-two.
The company's one-two punch of innovative design and aggressive marketing captured the market.
She delivered a verbal one-two that left him speechless.