All morphemes can be classed according to their status relative to words. A morpheme which occurs only as a part or all of some word is a ‘segmental’ morpheme: ‘John’, ‘treat’, ‘-s’. A morpheme which is not part of a word is ‘suprasegmental’: all intonations, and some other morphemes, such as the secondary stress /`/ on the second segmental constituent of /mæč + bàks/, which is not part of the word ‘box’.
- Hockett (1958), Pag. 168