Which dictionary brand first marketed itself as a regularly updated product with annual editions, fundamentally changing how language reference books were sold to consumers?

Dictionaries have evolved from simple reference books to powerful branded products with distinct marketing approaches. This trivia challenges your knowledge about a significant innovation in dictionary marketing history that changed how language reference products were positioned and sold to consumers. Test your knowledge of this linguistic product's marketing revolution!

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Merriam-Webster with its 'Collegiate' line in the 1970s
Oxford University Press with its 'Concise Oxford Dictionary' annual editions starting in 1983
Collins with its 'Word Power' campaign in 1988, promoting yearly updates
Chambers with its 'Year in Language' editions launched in 1992, pioneering annual refreshes