Mruic or Mru–Hkongso is a small group of Sino-Tibetan languages consisting of two poorly attested languages, Mru and Anu-Hkongso. Their relationship within Sino-Tibetan is unclear.
Peterson & Wright (2009) proposed the name Mru–Hkongso.
Matisoff (2015) classifies Mru as part of the Northeast Indian areal group, a linkage that includes Tani, Deng (Digaro), "Kuki-Chin–Naga", Meithei, Mikir, and Sal.
On the other hand, Bradley (1997) classifies Mru as part of Lolo-Burmese, based on Löffler's (1966) observations that Mru shares many phonological and lexical resemblances with Lolo-Burmese.
The Mru-Hkongso group was first proposed by Peterson & Wright (2009), who do not consider it to be a subgroup of Lolo-Burmese.
Peterson (2017:205) notes that Mru and Hkongso do not have any features characteristic of Kuki-Chin languages that have been identified by VanBik (2009), including lack of the sound change Proto-Tibeto-Burman *s > tʰ, lack of Kuki-Chin-type verb stem alternation, and lack of the singular first person pronoun (1.SG) *kaj which is present in most Kuki-Chin languages.
Peterson (2009) considers Mru-Hkongso to be a separate Tibeto-Burman branch, and notes the following similarities between Mru-Hkongso and Bodo–Garo languages.
Peterson (2009) considers the similarities with Bodo–Garo to be due to the possible early split of Mruic from a Tibeto-Burman branch that included Bodo–Garo (see also Central Tibeto-Burman languages and Sal languages).
Both Mru and Hkongso display SVO (subject-verb-object) order instead of the SOV word order typical of most Tibeto-Burman languages. Bai, Sinitic, and Karenic are the only other Sino-Tibetan language branches with primarily verb-medial (SVO) word order.