Positional faithfulness drives laxness alternations in Slovenian

We analyse the distribution of vowel laxness and stress alternations in Slovenian nouns (for example in the nominative and genitive forms of the masculine noun [ˈjɛzik ~ jeˈzika] ‘tongue’), showing that stress shifts away from mid lax vowels in initial syllables. A stress shift of this sort is predicted by positional faithfulness (Beckman 1997). We show that this prediction is correct, contra McCarthy (2007, 2010) and Jesney (2011). The productivity of the pattern is confirmed in a large-scale nonce-word task. Stress shift in Slovenian is a result of the markedness of mid lax vowels and, perhaps counterintuitively, faithfulness to laxness in initial stressed position.