ROLLING DOOR NO FURTHER A MYSTERY

the diphthong /eɪ/ as in ace and key, generally when ⟨a⟩ is accompanied by a single, or sometimes two, consonants and then One more vowel letter—this results from Middle English lengthening accompanied by The good Vowel ShiftDuring the International Phonetic Alphabet, ⟨a⟩ is useful for the open front unrounded vowel, ⟨ä⟩ is employed