Those who think the interchange of mid and high vowels in Kazan Tatar is amusing might enjoy these examples from North Saami. In this language, low and high vowels (*a and *ä at one end and *i at the other) swapped places in secondary syllables sometime in the past.
- *nimi ‘name’ > namma.
- *sompa ‘ring’ > soabbi.
- *kunta ‘community’ > goddi.
- *širvi ‘elk’ > sarva.
- *melä ‘paddle’ > mealli.
- *kåxli ‘tongue’ > giella.
From comparing North Saami and the other Saami languages, we know that this development was made possible by an intermediary shift of both high and low vowels to slightly different mid vowels. For *nimi > namma, we can reconstruct the stage ne̮me̮. For *melä > mealli, on the other hand, one must reconstruct *mēlē.