1570s, via Portuguese Japao, Dutch Japan, acquired in Malacca from Malay (Austronesian) Japang, from Chinese jih pun, literally "sunrise" (equivalent of Japanese Nippon), from jih "sun" + pun "origin." Japan lies to the east of China. Earliest form in Europe was Marco Polo's Chipangu.
word-forming element meaning "resembling or suggesting the style of," from French -esque "like, in the manner of," from Italian -esco, which, with Medieval Latin -iscus, is from Frankish or some other Germanic source (compare Old High German -isc, German -isch; see -ish).
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<a href="https://www.etymonline.com/word/japanesque">Etymology of japanesque by etymonline</a>
Harper, D. (n.d.). Etymology of japanesque. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/japanesque