Archaistic

something archaic, as a word or expression.
the use of what is archaic, as in literature or art:
the archaism of the novelist’s style provided a sense of the period.
the survival or presence of something from the past:
the art of letter writing is becoming an archaism.
historical examples

in the same sense we find also δαναοί, a name which later is used only in archaistic poetry.
the heroic age h. munro chadwick

in sound and structure mather’s style is what the critics call “archaistic.”
american sketches charles whibley

from some such p. 163feeling came the pre-raphaelite movement of our own day and the archaistic movement of later greek sculpture.
a critic in pall mall oscar wilde

many of these archaistic works are in various museums of art.
a history of art for beginners and students clara erskine clement

the language is crabbed, uncertain, archaistic—in no point displaying the incisive brevity of machiavelli’s style.
renaissance in italy: italian literature john addington symonds

racial and other causes removed him from any real affinity to the archaistic moralatarianism of mr. holman hunt.
masques & phases robert ross

a large number of archaistic works appeared, imitated after the antique, as has already been mentioned.
history of ancient art franz von reber

by the figure of sappho is inscribed the beginning of her name, in letters of archaistic form.
illuminated m-n-scripts in cl-ssical and mediaeval times j. henry middleton

from some such feeling came the pre-raphaelite movement of our own day and the archaistic movement of later greek sculpture.
reviews oscar wilde

the style of this work, however, is conventional and archaistic, and we can scarcely regard it as typical of the master.
encyclopaedia britannica, 11th edition, volume 12, slice 4 various

noun
the adoption or imitation of something archaic, such as a word or an artistic or literary style
an archaic word, expression, style, etc
n.

1640s, “retention of what is old and obsolete,” from modern latin archaismus, from greek arkhaismos, from arkhaizein “to copy the ancients” (in language, etc.); see archaic. meaning “an archaic word or expression” is from c.1748.