The based on Middle English
The ( (listen)) is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. The is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers.Article
The and that are common developments from the same Old English system. Old English had a definite article se (in the masculine gender), sēo (feminine), and þæt (neuter). In Middle English, these had all merged into þe, the ancestor of the Modern English word the.Barred thorn: the earliest abbreviation, it is used in manuscripts in the Old English language. It is the letter þ with a bold horizontal stroke through the ascender, and it represents the word þæt, meaning "the" or "that" (neuter nom. / acc.).
þͤ and þͭ (þ with a superscript e or t) appear in Middle English manuscripts for "þe" and "þat" respectively.
yͤ and yͭ are developed from þͤ and þͭ and appear in Early Modern manuscripts and in print (see Ye form).Occasional proposals have been made by individuals for an abbreviation.  In 1916, Legros & Grant included in their classic printers' handbook Typographical Printing-Surfaces, a proposal for a letter similar to Ħ to represent "Th", thus abbreviating "the" to ħe.In Middle English, the (þe) was frequently abbreviated as a þ with a small e above it, similar to the abbreviation for that, which was a þ with a small t above it. During the latter Middle English and Early Modern English periods, the letter thorn (þ) in its common script, or cursive form, came to resemble a y shape. As a result, the use of a y with an e above it () as an abbreviation became common. This can still be seen in reprints of the 1611 edition of the King James Version of the Bible in places such as Romans 15:29, or in the Mayflower Compact. Historically, the article was never pronounced with a y sound, even when so written.
The word "The" itself, capitalised, is used as an abbreviation in Commonwealth countries for the honorific title "The Right Honourable", as in e.g. "The Earl Mountbatten of Burma", short for "The Right Honourable Earl Mountbatten of Burma", or "The Prince Charles".