Which linguistic technique was deliberately used in naming the dictionary company 'Merriam-Webster' to enhance its brand identity and market position?

In the world of linguistics and marketing, brand names often employ fascinating linguistic devices to create memorable and effective product identities. From phonetic symbolism to clever wordplay, companies invest significant resources in developing names that resonate with consumers and distinguish their products in competitive markets. This poll tests your knowledge about how linguistics principles have shaped some of the world's most successful brand identities.

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Eponymy (using the founders' surnames) to establish authority and academic credibility in the lexicography field
Portmanteau (blending two words) to represent the combination of American and British English traditions
Onomatopoeia to phonetically suggest the sound of pages turning in a reference book
Initialisms where 'M-W' was designed to be visually symmetric and easily pronounced in multiple languages