7 letters · 12 points in Scrabble
noun a science that deals with the history of the earth as recorded in rocks
originFrom geo- + -logy, partly after Renaissance Latin geōlogia, from Ancient Greek γεω- (geō-, “earth”) + Latin -logia (“the study of”), from Ancient Greek -λογία (-logía).
Etymology from Wiktionary, CC BY-SA 3.0