Interferensi Bahasa Jawa ke dalam Bahasa Indonesia pada Kanal Youtube Korea Reomit (Kajian Sosiolinguistik)

This study aims to describe the forms of Javanese interference in the use of Jang Hansol’s daily speech in videos on the Korea Reomit Youtube channel, and to describe the factors that cause interference from Javanese into Indonesian. The data collection method used by observation method. The Whereas the techniques used in this study are uninvolved conversation observation technique. Then it followed by techniqus follow up by note taking technique. The data analysis was conducted through intralingual identity methods and extralingual identity methods. The identity method is described in one basic technique, namely the form of appeal-differentiation techniques. The results of data analysis are presented informally and formally. The forms of interference found in the research object are phonological, morphological, and lexical interference. Phonological interference is caused by the process of sound change which includes (1) glottalization, (2) aspiration, (3) changes in vowel phonemes, (4) diphtongization, and (5) monophtongization. In the field of morphology, interference is caused by the addition of Javanese affixes. In the lexical field, interference is caused by the insertion of Javanese words in the form of basic words, and invented words into Indonesian. The factors that cause interference are (1) speaker bilingualism background, (2) the prestige of the source language and language style, (3) carried away by the habits of the source language, (4) adjacent language system