- a combining form meaning “tree,” used in the formation of compound words: dendrology.
Origin of dendro-
dendri- or before a vowel dendr-
- treedendrochronology; dendrite
Word Origin and History for dendro-
word-forming element meaning "tree," from Greek dendro-, comb. form of dendron "tree," sometimes especially "fruit tree" (as opposed to hyle "timber"), from PIE *der-drew-, from root *deru- "to be firm, solid, steadfast," specifically used for "wood, tree" (see tree (n.)).