In drawing attention to some of the archaic features of Khowar (Report on a Linguistic Mission to Afghanistan, p.71), Dr. Morgenstierne says: “The preservation of t as r … is a very archaic feature, with parallels only, to some extent, in Shina, some Kohistani dialects and Romany.”
page 533 note 1 The Shina words quoted are taken from Dr. Grahame Bailey's Shina Grammar and Lt.-Col. Lorimer's articles in JRAS. and Bulletin S.O.S.
page 535 note 1 Suggested to me by Mr. P. S. Noble of St. John's College, Cambridge.
page 537 note 1 As also in Khowar, according to a communication from Dr. Morgenstierne.