耳朵
ěrduǒ · HSK 5
ear
👂 耳朵 = ear (耳) + 朵 (measure word/blossom suffix)
耳 is the pictographic ear radical; 朵 originally meant a blossom or hanging cluster and here acts as a soft suffix, much like adding -ie in English. Together 耳朵 simply means the fleshy ear.
朵 — 几 (table) below 木 (tree)
朵 is a pictograph showing a flower or cluster hanging from a branch, with 木 (tree) as the base and the top depicting drooping blossoms or fruit. Its original meaning was a hanging flower or bloom, which extended to its modern use as a measure word for flowers and clouds.