Æ in Helvetica and Bodoni Æ alone and in context. Æ (lowercase: æ) is a character formed from the letters a and e, originally a ligature representing the Latin diphthong ae.It has been promoted to the status of a letter in some languages, including Danish, Norwegian, Icelandic, and Faroese.It was also used in both Old Swedish, before being replaced by ä, and Old English, where it was ...