Regular sound correspondences between Hungarian and other Uralic languages a different fashion. (Again, with the help of the other Uralic languages, the analogous developments *mp *ŋk → Hungarian /b g/, Finnic /mp ŋk/ could be supported.) Two different regular correspondences can be found in Hungarian for Finnish and Estonian . The first is Hungarian : The second is Hungarian zero: These two correspondences represent two different original consonants. : is reconstructed as originating in Proto-Uralic *ś, while ∅ : is reconstructed as Proto-Uralic *s. Both correspondences can be seen simultaneously in the word for "autumn" (see above under *-k-), from Proto-Uralic *sükśi. Examples also include 'bit', 'to fear', 'cloud',
Indo-Uralic languages in 1906 and another by H. Paasonen in 1908 (i.e. 1907) (ib.). Pedersen considered that these two studies sufficed to settle the question and that, after them, "it seems unnecessary to doubt the relationship further" (ib.). Sweet considered the relationship to be securely established, stating (1900:120; "Aryan" = Indo-European, "Ugrian" = Finno-Ugric): Björn Collinder, author of the "Comparative Grammar of the Uralic Languages" (1960), a standard work in the field of Uralic studies, argued for the kinship of Uralic and Indo-European (1934, 1954, 1965). Alwin Kloekhorst, author of the "Etymological Dictionary of the Hittite Inherited Lexicon", endorses the Indo-Uralic grouping