Definition of "Yar"

Yar

proper noun
1. Two rivers on the Isle of Wight, England, the Eastern Yar which reaches the sea at Bembridge, and the Western Yar at Yarmouth on the Solent. Both rivers are called the River Yar on Ordnance Survey Maps.
  Quotations
  At Merstone, The line to Sandown branches to the left, descends the ½ mile at 1 in 70 of Redway bank, and runs along the valley of the little River Yar (not to be confused with the River Yar in the western part of the island), through low-lying pleasing countryside, covered in spring and summer with wild flowers, to Horringford, 1¾ miles from Merstone.
  1946 July and August, K. Westcott Jones, “Isle of Wight Central Railway—2”, in Railway Magazine, page 244