If hieroglyphic writing is "all Greek to you," you know more about the etymology of hieroglyphic than you might think. That word comes from the Greek hieroglyphikos, which means "sacred carving" (from hieros, meaning "sacred," and glyphein, meaning "to carve"). The ancient Greeks who named hieroglyphic writing reserved that term for the picture writing they found carved in temple walls or on public monuments in Egypt; it was distinguished from writings done in ink on papyrus or other smooth surfaces. But since making their first appearances in English in the 1580s, both the noun hieroglyphics and the adjective hieroglyphic have been extended to apply to the picture writing of various cultures, whether or not those writings were carved or sacred.