MorphAdorner incorporates methods for hyphenating English words written by David Tolpin. The algorithms are based upon those originally written for the TeX typesetting system created by Donald E. Knuth. The rules for hyphenation differ somewhat between American English and British English. American English breaks words on sound, while British English breaks words on the origin of the word, then sound. There are also many exceptions.

MorphAdorner uses the British approach as a default since MorphAdorner has been used mostly to analyze British literature up to now. However, tables are provided which define the American rules as well.

You can try MorphAdorner's hyphenator online.