The theme of this thesis is the determination, presentation and analysis of Romanisms (Italianisms) in the speech of Split at the beginning of the twentieth century in the magazine Duje Balavac. The main assumption is that the urban core of the speech of Split, despite increasing standardisation and stokavisation, has still preserved a significant number of dialect expressions of Italian origin. Publicistic activities of Ante Katunarić and his paper isn’t only one more magazine about derision of Split, it is also written evidence about speech of Split and proof of a complex demographic and linguistic environment in that city in the early twenties. The corpus consists of Italianisms found in the complete volume (23 issues) of the humoristic and satirical magazine Duje Balavac published in Split from 1908 to 1912. The analysis of the process of the adaptation of Romanisms (Italian and Venetian origin) at the morphological level is based on the theory of languages in contact (professor Rudolf Filipović). Process of complete transmorphemisation of italian loanwords have been presented and illustrated with examples from the analysed corpus. We have extracted and examined only nouns, because they are the most common and numerous loanwords among word categories. We concluded that among the nouns we examined, the most of them have completely adapted to Croatian morphological system and because of that they were worth studying. The presented and analysed Romanisms give evidence of the centennial Roman and Slavic contacts and the immixture of their cultures, traditions and languages. Language in the magazine Duje Balavac was living image and written monument of that contact: image consististing numerous caricatures and monument full of stories about the city of Split in the early twenties.