Wikipedia says that Proto-Slavic language (the proto-language from which Slavic languages later emerged) had dual. But it was lost in every Slavic language exce

Wikipedia says that Proto-Slavic language (the proto-language from which Slavic languages later emerged) had dual. But it was lost in every Slavic language except for Slovene and Sorbian: Of the living languages, only Slovene and Sorbian have preserved the dual number as a productive form. In all of the remaining languages, its influence is still found in the declension of nouns of which there are commonly only two: eyes, ears, shoulders, in certain fixed expressions, and the agreement of nouns when used with numbers. http://en.wikipedia.org/wiki/Dual_(grammatical_number)#The_dual_in_the_Slavic_languages http://en.wikipedia.org/wiki/Dual_(grammatical_number)#The_d...