romantic (n.)youdaoicibaDictYouDict[romantic 词源字典]
"an adherent of romantic virtues in literature," 1827, from romantic (adj.).[romantic etymology, romantic origin, 英语词源]
romantic (adj.)youdaoicibaDictYouDict
1650s, "of the nature of a literary romance," from French romantique, from Middle French romant "a romance," oblique case of Old French romanz "verse narrative" (see romance (n.)).

As a literary style, opposed to classical since before 1812; in music, from 1885. Meaning "characteristic of an ideal love affair" (such as usually formed the subject of literary romances) is from 1660s. Meaning "having a love affair as a theme" is from 1960. Related: Romantical (1670s); romantically. Compare romanticism.