Syntax, morphology, and phonology can be used as a reference for language classification. This research aims to determine the grammatical alliance of the Simalungun language syntactically and its typology. It is a qualitative study with the typology approach. The data are phrases and clauses of the Simalungun language collected from informants and books – Simalungun language syntax books, by interviews and notes. It found that a transitive verb formulates the intransitive clause of the Simalungun Batak language as a predicate. The predicative verb appears with affixes. In general, the Simalungun language contains verbs that, in their presence, correspond to the subject. Simalungun language has a grammatical alliance system that treats subject (S) the same as agent (A), and a different treatment is given to predicate (P). Based on grammatical relations, the Simalungun language treats S the same as A at the syntactic level. Thus, it can be typologically grouped into syntactical accusatives. Based on the Pivot test, it also belongs to the accusative language group.

Languages that are in one proto are thought to still have language kinship. This study will describe how the kinship of the Pakpak and Alas languages and find out the time of separation and the age of the Pakpak and Alas languages. The methods used are qualitative and quantitative methods. From the results of the study, it was found that the Pakpak and Alas languages have a kinship relationship in the family class because they are in the range of 44%. This indicates that the Pakpak and Alas languages are in the same proto and have family relationships. Pakpak and Alas languages are considered to be the same language around 1891 thousands of years ago. In addition, the Pakpak and Alas languages are thought to have started to separate from a single proto-language around the year 131 ADKeywords: Alas language; kinship; Pakpak language; comparativeAbstrakBahasa yang berada pada satu proto diduga masih memiliki kekerabatan Bahasa.  Penelitian ini akan menggambarkan bagaimanakah hubungan kekerabatan bahasa Pakpak dan Alas serta mengetahui waktu pisah dan usia  bahasa Pakpak dan Alas. Metode yang digunakan adalah metode kualitatif dan kuantitatif. Dari hasil penelitian didapati bahwa bahasa Pakpak dan bahasa Alas memiliki hubungan kekerabatan pada kelas family karena berada pada kisaran 44% Ini menunjukkan bahwa bahasa Pakpak dan Alas berada pada satu proto yang sama dan memiliki hubungan family(keluarga). Bahasa Pakpak dan Alas diperhitungkan merupakan satu bahasa yang sama sekitar 1891 ribuan tahun yang lalu. Selain itu, bahasa Pakpak dan Alas diperkirakan mulai berpisah dari satu bahasa proto kira lira tahun 131MasehiKata Kunci : bahasa Pakpak; bahasa Alas; kekerabatan; komparatif