When did the word 'vampire' become part of the English language?

Answer 1

"The Oxford English Dictionary dates the first appearance of the word vampire in English from 1734, in a travelogue titled Travels of Three English Gentlemen published in the Harleian Miscellany in 1745.[12][13] Vampires had already been discussed in German literature.[14] After Austria gained control of northern Serbia and Oltenia in 1718, officials noted the local practice of exhuming bodies and "killing vampires".[14] These reports, prepared between 1725 and 1732, received widespread publicity.[14]

The English term was derived (possibly via French vampyre) from the German Vampir, in turn derived in the early 18th century from the Serbian вампир/vampir.[15][16][17][18][19] when Arnold Paole, a purported vampire in Serbia was described during the time Serbia was incorporated into the Austrian Empire."

Answer 2

The word “vampire” entered the English language in the early 18th century, borrowed from French. It gained popularity through works like John Polidori's 1819 novella “The Vampyre” and Bram Stoker's 1897 novel “Dracula.”