IPA: /ˌstrætɪˈɡræfɪk/
KK: /strætɪˈɡræfɪk/
Related to the layers of rock or soil in the ground and how they are arranged.
The stratigraphic analysis revealed important information about the geological history of the area.
Stratigraphic → It is formed from "stratum" (from Latin *stratum*, meaning layer) and "-graphic" (from Greek *graphia*, meaning writing or description). The word "stratigraphic" refers to the description or study of layers, particularly in geological contexts.
Think of 'layers' ('stratum') being 'described' ('-graphic') — that's why stratigraphic relates to the study of layers in geology.