a long vowel (sometimes spelled ). Medieval writing often used doubled letters for long vowels, writing the vowel as . From around 1200, the vowel underwent rounding towards to such a degree that it started to show up in the written language by using . In manuscripts from 1300 to 1400, a word like blaa ('blue', modern spelling ) could also be spelled or , sometimes with an added line.

In Old Swedish the use of the ligature Æ and