ichidan verb, intransitive verb
Emphatic or dramatic way to say something disappears completely, often with a sense of finality or suddenness.
彼は突然消え失せた。
He suddenly vanished.
その雲はすぐに消え失せた。
The cloud quickly disappeared.
ichidan verb, intransitive verb
Archaic or literary euphemism for dying; not used in modern everyday speech.
彼は若くして消え失せたと古文書にある。
The old document says he passed away young.