 There are also traces of some archaic grammatical features, such as residues of the Demotic relative clause, lack of an indefinite article and possessive use of suffixes.Thus, the transition from the 'old' traditions to the new Christian religion also contributed to the adoption of Greek words into the Coptic religious lexicon.It is safe to assume that the everyday speech of the native population retained, to a greater extent, its indigenous Egyptian character, which is sometimes reflected in Coptic nonreligious documents such as letters and contracts.