Lehrbuch; Arbeitsbuch; Course book; Textbook; Workbook; Übungsbuch; Introductions (to linguistics) ; Transfer (languages in contact) ; Adstratum language; Adstratsprache; Interference ; Creole ; Category (theory of language) ; Linguistic universals ; Typologie; Typology; Language typology ; Comparative linguistics; Komparatistik; Indogermanistik; Indoeuropäische Sprachwissenschaft; Indoeuropean linguistics; Proto-Indo-European; Historical comparative linguistics ; Eurasiatic ; Nostratic ; Paläolinguistik; Paleolinguistics; Reconstruction (historical linguistics) ; Yiddish ; Hamitische Sprachen; Hamitic languages; Afrosemitisch; Afrosemitic; Hamitosemitische Sprachen; Hamitosemitic languages; Afro-Asiatic languages ; Semitic languages ; Aborigines; Australian languages ; Austroasiatic languages ; Austronesian languages ; Euskara; Basque ; Dravidian languages ; Nordamerikanische und Zentralamerikanische Indianersprachen; North and Central American Indian languages; Mittelamerikanische Indianersprachen; Mesoamerican Indian languages; Indigenous languages of North and Central America ; Südamerikanische Indianersprachen; South American Indian languages; Amazonian languages; Indigenous languages of South America ; Caucasian languages ; Kxoé; Xũ-Khwe; Khoe; San ; Nigerkordofanische Sprachen; Congo-Kordofanian languages; Kongosaharanische Sprachen; Niger-Congo languages ; Ostsudanisch; Eastern Sudanic; Nilotisch; Nilotic; Zentralsudanisch; Central Sudanic; Nilo-Saharan languages ; Tibetoburmanische Sprachen; Tibeto-Burman languages; Himalayan; Himalayisch; Tibeto-Himalaya-Sprachen; Tibeto-Himalayan languages; Sino-Tibetan languages ; Ahom; Tai-Khamti; Kam-Tai; Zhuang ; Altaic languages ; Turkic ; Uralic languages
