NEW YORK (Reuters) - Macy's Inc (>> Macy's Inc) has settled its lawsuit accusing J.C. Penney Co (>> J C Penney Company Inc) of interfering improperly with its exclusive merchandising agreement with Martha Stewart Living Omnimedia Inc.

New York State Supreme Court Justice Jeffrey Oing in Manhattan ordered the case's dismissal this week, following a joint request from Macy's and J.C. Penney.

A lawyer for Macy's confirmed on Thursday that the case has been settled. Terms were not disclosed.

Neither retailer immediately responded to requests for comment.

The settlement ends a five-year-old case rooted in a 2011 agreement in which J.C. Penney was to sell Martha Stewart's bed, bath and kitchen products in stores then being overhauled by Ron Johnson, J.C. Penney's chief executive at the time.

Macy's said this agreement undermined its own exclusive right under a 2006 contract to sell the same kinds of products under the Martha Stewart brand.

In June 2014, Oing ruled against J.C. Penney, following a trial in which Martha Stewart herself had testified.

Two years later, he ordered J.C. Penney to pay Macy's about $3.5 million of damages. Both companies appealed from that order, but the settlement ends the appeals process.

Macy's previously settled separate claims against Martha Stewart's company.

Johnson's overhaul at J.C. Penney is now widely considered a failure, after it caused a big decline in sales and led to his firing in 2013.

Sequential Brands Group Inc (>> Sequential Brands Group Inc) bought Martha Stewart Living Omnimedia in December 2015 for roughly $353 million.

The case is Macy's et al v. J.C. Penney Co, New York State Supreme Court, New York County, No. 650197/2012.

(Reporting by Karen Freifeld and Jonathan Stempel in New York; editing by Diane Craft)

By Karen Freifeld and Jonathan Stempel