Depicts a person (卩) using a pestle (午). 午 also represents the sound. The 辵 (walk) component was later added to emphasize action. Based on the original meaning, “to use, to control”. The meaning later shifted to “to govern”. In simplified Chinese 御 is also used to mean "to resist", while in traditional Chinese this meaning is written with a separate character 禦.
御 and 午 don't sound similar in modern Mandarin due to historical phonetic changes. They were more similar in older Chinese.御 /*m-[qʰ](r)aʔ/, /*[ŋ](r)a-s/ 午 /*[m].qʰˤaʔ/, /*m-qʰˤaʔ/