8 letters · 15 points in Scrabble
noun the art of designing and making clocks
originFrom Latin horologia, from horo- + -logia, equivalent to Ancient Greek ὥρα (hṓra, “period of time, hour”) + -λογία (-logía, “-ology: study or proper knowledge of”). Equivalent to horo- + -ology.
Etymology from Wiktionary, CC BY-SA 3.0