Proto-Sino-Tibetan: *rēH
Meaning: single, one of a pair
Tibetan: re single, a single one.
Burmese: hriʔ be identical, equal.
Kachin: (H) kri alone, all by itself.
Comments: Cf. also OCh. 嫠 *rǝ widow, 孷 *rǝ twins; Jnp. khrai1 be alone, ǯǝkhrai1 an orphan.