Blab
/blæb/noun
To talk too freely or reveal a secret.
Did you know?English first recorded *blab* in the 16th century as an imitative word for loose, uncontrolled speech, and it later produced *blabber* and *blabbermouth*—proof that language has always had a word for leaking energy.
Etymological Timeline
Proto-Indo-European
PIE
*bhel-
“to blow, swell, or make a puffing sound”
Old English
OE
blǣddrian / blæddrian
“to chatter or babble”
Middle English
ME
blabben
“to prattle or reveal secrets”
16th Century
English
blab
“to talk idly or reveal something entrusted as secret”
Modern English
English
blab
“to disclose information carelessly or indiscreetly”