precedented
/ˈprɛsɪdɛntɪd/adjective
Provided with or having a precedent; in accordance with or warranted by precedent; paralleled or supported by a similar previous case.
Origin
Mid 17th century; earliest use found in Walter Blith (bap. 1605, d. 1654), writer on husbandry. Partly from precedent + -ed, and partly from precedent + -ed.