Etymograph > Indo-European > Old English > Phoneme

Graphemes: β
Classes: voiced bilabial fricative consonant
Implicit classes: obstruent C
Features +voice labial -sonorant +continuant -strident
Historical

Related rules

Origin

  • oe-bilabial-fricative-devoicing: β > f
  • pwgmc-gemination-by-j: β > bb / _j, C > CC / _j