A critical instance of the domoninace of MORPHEMES over PHONEMESIS is in HYPHENATION. You only hyphenate at a morpheme, not a ohoneme.

Thus, in the word "hyphen", you do not hyphenate as "hyp- -hen", but as "hy- -phen", because "hy-" is a PREFIX (PL) derived from the Greek language, and "-phen" is a WORD ROOT derived from the Greek Language.

Most English language users do not know know to hypenate, and are almost regularly incorrect, unless the word is checked in a dictionary. This is because MORPHEMES are not taught, because the concern for PHONEMES obscures this matter, and because there is no morphemic