English
X
Introduced by René Descartes in the context of mathematical notation, but has since widened to other contexts.
The story
Introduced by René Descartes in the context of mathematical notation, but has since widened to other contexts.
Another origin of X
- Aramaicc. 1000 BCE–700 CEܡܫܺܝܚܳܐm'šīḥāʿ‘Messiah, Christ’
- Ancient Greekc. 800–300 BCEΧριστόςKhristós‘Christ’
- Ancient Greek, derivedc. 800–300 BCEΧ
- EnglishtodayX
Today it means
num An unknown quantity or unknown value.
Language periods are conventional ranges, not dates for this word.
Etymograph / X