Etymograph

English

gravity knife

From gravity + knife.

A compound of gravity + knife

Proto-Indo-European *gʷreh₂- ‘heavy’

…

Proto-Italic *gʷraus

Latin gravis ‘heavy’

Latin gravitās ‘weight, heaviness’

French gravité ‘seriousness; gravity’

English gravity

Old English cnīf

Middle English knyf ‘knife’

English knife

Today it means

noun A folding knife of this type.

Language periods are conventional ranges, not dates for this word.

Etymograph / gravity knife