Relatives in Indo-European and Hittite
[The Hittite relative kuis is like the early Italic relative in that (1) the relative clause tends to stand before the main clause, (2) the relative itself is usually postpositive, (3) a demonstrative frequently stands within the relative clause, and (4) the relative is often doubled (kuis kuis, quis quis). This detailed correspondence proves that the relative (i.e. connective) value of the stem was Indo-European and also Indo-Hittite. Confirmation of the conclusion is furnished by the connective force of *que, which is certainly akin. Both in IE and in IH the relative zos was probably used after definite antecedents, while *quis was a general relative. ]