不翼而飞
bù yì ér fēi · HSK 7
to disappear without trace
🪶 no-wings + yet-flies = vanished like it flew off without wings
Used two ways: things that vanish mysteriously and rumors that spread impossibly fast. No wings needed when gossip does the flying.
不 — single pictograph; bird flying upward
Originally a pictograph in oracle bone script, traditionally interpreted as a bird flying up toward the sky and unable to come down, suggesting negation or refusal. Over time it became the standard negation word in Chinese, used before verbs and adjectives to mean 'not'.
而 — pictograph of beard/whiskers hanging from chin
Originally a pictograph of a beard or facial hair hanging below the chin, visible clearly in oracle bone and bronze script forms. The beard meaning was lost early, and the character was borrowed phonetically to write the grammatical conjunction 'and/but/yet'. This connective use has been standard since classical Chinese.
飞 — pictograph of a bird in flight (wings + body)
飞 is a pictograph originally depicting a bird soaring with outstretched wings, with the upper stroke suggesting the head and the curved strokes representing wings and tail. The traditional form 飛 shows the wings more clearly; 飞 is the simplified version retaining just one wing-like element. Its core meaning 'to fly' has stayed stable throughout history.