Gothic
from French gothique or late Latin gothicus, from Gothi (see Goth). It was used in the 17th and 18th centuries to mean ‘not classical’ (i.e. not Greek or Roman), and hence to refer to medieval architecture which did not follow classical models (Gothic (sense 2 of the adjective)) and a typeface based on medieval handwriting (Gothic (sense 4 of the adjective)).
wiktionary
Goth + -ic, English from the 17th century, Late Latin gothicus.
The various usages of the adjective are introduced nearly simultaneously in the first half of the 17th century. The literal meaning “of the Goths” is found in the 1611 preface of the King James Bible, in reference to the Gothicke tongue. The generalized meaning of “Germanic, Teutonic” appears in the 1640s. Reference to the medieval period in Western Europe, and specifically the architecture of that period (“barbaric style”, initially a term of abuse), also appears in the 1640s, as does reference to “Gothic characters” or “Gothic letters” in typography.
etymonline
Gothic (adj.)
"of the Goths," the ancient Germanic people, "pertaining to the Goths or their language," 1610s, from Late Latin Gothicus, from Gothi, Greek Gothoi (see Goth). Old English had Gotisc. As a noun, "the language of the Goths," from 1757. Gothic was used by 17c. scholars to mean "Germanic, Teutonic," hence its use from 1640s as a term for the art style that emerged in northern Europe in the Middle Ages (which has nothing to do with the historical Goths), originally applied in scorn by Italian architects of the Renaissance; it was extended early 19c. to literary style that used northern European medieval settings to suggest horror and mystery. The word was revived 1983 as the name for a style of music and the associated youth culture (see goth). In typography, in England of black-face letters used for German text (1781), in the U.S. of square-cut printing type. Gothic revival in reference to a style of architecture and decorating (championed by Sir George Gilbert Scott) is from 1856.
