确保
quèbǎo · HSK 3
ensure
🔒✅ 确 (certain) + 保 (protect) = make certain & protect = ensure
确 means certain/sure (stone 石 radical, solid as rock). 保 means protect/guarantee. Together: certify and safeguard, i.e. ensure or make sure something happens.
保 — person 亻 + 呆 (child/protect phonetic)
Originally an ideograph showing an adult carrying a child on the back, meaning to protect or shield. The right side 呆 evolved from a depiction of a swaddled infant. Over time the meaning broadened from 'protect a child' to 'preserve, guarantee, keep safe.'