Boast — From Anglo-Norman to English | etymologist.ai
boast
/boʊst/·verb·c. 1300·Established
Origin
Appeared c. 1300, probably Anglo-Norman 'bost' — an unsolved etymological mystery, uniquelycarrying both negative and positive senses.
Definition
To talk about one's achievements or possessions with excessive pride; to possess a notablefeature or quality.
The Full Story
Anglo-Norman1300swell-attested
Of genuinely uncertain ultimate origin — one of the more stubborn etymological mysteries in Middle English. The word appears as 'bost' (arrogance, ostentation, a loud unfounded claim) from around 1300, probably from Anglo-Norman French 'bost' (noise, bluster, boasting), of unknown further origin. Some scholars have pointed to parallel forms in Old Norse 'baust' and Norwegian dialect 'baus' (arrogant, proud, puffed up), suggesting a shared North Sea
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The secondary meaning of 'boast' — 'this hotel boasts a fine view' — where the subject possesses rather than brags about something, developed in the 17th century and represents an unusual shift from negative connotation (arrogance) to positive or neutral (having something impressive).
Germanic root, possibly Proto-Germanic *baus- (swollen, inflated, puffed up), which would connect conceptually to PIE *bʰew- (to grow, to swell, to be). The
. The core semantic charge — a loud, unfounded, self-aggrandising claim — has remained stable across seven hundred years and every social context in which the word has been used, from medieval tournaments to social media. Key roots: bost (Anglo-Norman/uncertain: "ostentation, arrogance").