随身
suí shēn · HSK 7
to on one's person
🎒 随身 = 随 follow + 身 body: it follows your body, so it's carried on you
随 means follow/go-along-with and 身 means body. Whatever 随身 describes stays attached to your body as you move, hence to carry on one's person or take with you.
随 — 辶 (walk) + 阝 (mound) + 有 phonetic
随 combines the walk radical 辶 with a phonetic component derived from 隋. The original sense is 'to follow along a path,' from the walking radical suggesting movement after someone. Over time it broadened to mean 'follow,' 'accompany,' or 'comply with.'
身 — pictograph of a pregnant body
身 is a pictograph originally depicting a person with a swollen belly, representing a pregnant woman in profile. Over time the meaning broadened from 'pregnancy' or 'torso' to refer to the body in general, and by extension oneself or one's person.