"old-fashioned," 1900, past-participle adjective from date (v.1) in the "mark as old-fashioned" sense.
Entries linking to dated
date v.1
c. 1400, daten, "to mark (a document) with a date," also "to assign to or indicate a date" (of an event), from date (n.1). Meaning "to mark as old-fashioned" is from 1895. Intransitive sense of "to have a date" is by 1850.