You will discover 6 meanings detailed in OED's entry to the noun masthead, two of which happen to be labelled obsolete. See ‘Which means & use’ for definitions, use, and quotation evidence. Usually, the time period “masthead” originates from nautical dictionaries. The masthead on the ship is the highest part https://abcblogdirectory.com/listings162553/the-basic-principles-of-masthead