Dictionary
pseudometastellopsis
n.The sudden certainty, immediately after sending a message, that it contains a catastrophic error which, on anxious rereading, turns out not to exist.
From Greek ψευδής (pseudḗs, “false”) and metastellopsis.
Example Usage:
A: “Oh, for fuck’s sake.”
V: “What?”
A: “I’ve misspelled your name.”
[Frantic rereading]
A: “Phew, no. Just a pseudometastellopsis.”