Dictionary.com
Thesaurus.com

dendroglyph

American  
[den-droh-glif, den-druh-] / ˈdɛn droʊˌglɪf, ˈdɛn drə- /

noun

  1. an image, message, or symbol carved into a tree, especially by Indigenous people and often hundreds of years old, providing cultural and historical information not available from other sources.

    The awe-inspiring dendroglyph was etched into the bark of a large yellow walnut tree in Queensland, Australia, prior to European settlement.


Etymology

Origin of dendroglyph

Coined in 1918 by Australian curator Robert Etheridge, Jr.; dendro- ( def. ) + glyph ( def. ); replaced earlier arborglyph