English word dendrochronological comes from English chronological, English dendro- (Dendr- + -o-.)

Detailed word origin of dendrochronological

Dictionary entry	Language	Definition
chronological	English (eng)	In order of time from the earliest to the latest.. Relating to time, or units of time.
dendro-	English (eng)	Dendr- + -o-.
dendrochronological	English (eng)	Pertaining to dendrochronology.

Words with the same origin as dendrochronological