STRONG YER

A yer semivowel that was not reduced to an ultrashort vowel, but instead evolved into different sound in a modern slavic language.

Example: "Counting from the last yer in a word, the final yer is weak, the previous yer is strong, the previous yer is weak, etc., until a full vowel is reached, and then the pattern is started again with alternating weak then strong yers."