In another but uncommon hypothesis, Albanian is grouped with both Balto-Slavic and Germanic based on the merger of push chain that affected all long vowels.
2.
But it is also conceivable that the shift happened as a push chain, where the changes happened in reverse order, with each change " pushing " the next forward to avoid merging the phonemes.
3.
This type of sound change, in which one vowel's pronunciation shifts so that it is pronounced like a second vowel, and the second vowel is forced to change its pronunciation, is called a push chain.
4.
A "'push chain "'is a chain shift in which the phoneme at the " end " of the chain moves first : in this example, if moved toward, creating a " crowding " effect and causing to move toward, and so forth.