経路
けいろ · keiro · JLPT N1 · noun
route
🛤️ 経 (pass through) + 路 (road) = the road a thing passes through, i.e. a route
経 means to pass through or go via, and 路 means road or path. Together they name the course a thing travels, whether a route, a course of study, or a signal channel.
路 — foot 足 + each 各 (phonetic)
路 is a semantic-phonetic compound. The foot radical 足 on the left signals meaning related to walking or travel, while 各 on the right hints at the ancient pronunciation. Originally referring to a road traveled on foot, it broadened to mean 'road, path, route' in general.