6o The Loom of Language FIG. ii—CONSONANT SYMBOLS OF SOME CONTEMPORARY Pronunciation changes in the course of centuries So it is somewhat arbitrary to give fixed values to Greek symbols which iuve retained loughly the same shape for two thousand five hundred years It sccnrt clear that $ ongmally stood for an aspirated p rendered as PH in Latin transcription The symbol for p (TT) replaces ^ in the first syllable of the reduplicated pai>t tense lorm of verbs