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hi·er·o·glyph·ic (hīər-ə-glĭfĭk, hīrə-) also hi·er·o·glyph·i·cal (-ĭ-kəl)
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adj.
1.
a. Of, relating to, or being a system of writing, such as that of ancient Egypt, in which pictorial symbols are used to represent meaning or sounds or a combination of meaning and sound.
b. Written with such symbols.
2. Difficult to read or decipher.
n.
1.
a. A hieroglyph.
b. often hieroglyphics (used with a sing. or pl. verb) Hieroglyphic writing, especially that of the ancient Egyptians.
2. Something, such as illegible or undecipherable writing, that is felt to resemble a hieroglyph.

[French hiéroglyphique, from Late Latin hieroglyphicus, from Greek hierogluphikos : hieros, holy; see eis- in the Appendix of Indo-European roots + gluphē, carving (from gluphein, to carve; see gleubh- in the Appendix of Indo-European roots).]

hier·o·glyphi·cal·ly adv.
(click for a larger image)
hieroglyphic

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 

Indo-European & Semitic Roots Appendices

    Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

    Indo-European Roots

    Semitic Roots

    The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.