Dendrology greek root

Dendrology is the science of trees and other woody plants such as shrubs or lianas. The word "dendrology" comes from Greek words δένδρον meaning "tree" and λόγος meaning "study".dendro- word-forming element meaning "tree," from Greek dendron "tree," sometimes especially "fruit tree" (as opposed to hylē "timber"), from PIE *der-drew-, from root *deru- "to be firm, solid, steadfast," also forming words for "wood, tree."Etymology Greek, from dendron; akin to Greek drys tree — more at tree entry 1Traditionally derived from Proto-Indo-European *der-drew-om with dissimilation, reduplicated from *dóru (“tree”), but this type of reduplication is highly atypical, so the formation must be regarded as uncertain.