French Orthography - Digraphs and Trigraphs

Digraphs and Trigraphs

French digraphs and trigraphs have both historical and phonological origins. In the first case, it is a vestige of the spelling in the word's original language (usually Latin or Greek) maintained in modern French, for example the use of ⟨ph⟩ in words like téléphone, ⟨th⟩ in words like théorème or ⟨ch⟩ in chaotique. In the second case, a digraph is due to an archaic pronunciation, such as ⟨eu⟩, ⟨au⟩, ⟨oi⟩, ⟨ai⟩ and ⟨œu⟩, or is merely a convenient way to expand the twenty-six-letter alphabet to cover all relevant phonemes, as in ⟨ch⟩, ⟨on⟩, ⟨an⟩, ⟨ou⟩, ⟨un⟩ and ⟨in⟩. Some cases are a mixture of these, or are used for purely pragmatic reasons, such as ⟨ge⟩ for /ʒ/ in il mangeait ('he ate'), where the ⟨e⟩ serves to indicate a "soft" ⟨g⟩ inherent in the verb's root.