Where does “X” come from?

X (Tagalog) comes from Spanish x, from English X, from English Christ, from Middle English Crist, from Old English Crīst, from Latin Chrīstus, from Ancient Greek Χριστός, from Ancient Greek χρίω — to rub; to stroke; to grind.

Ancestry of “X”, step by step

StepLanguageWordMeaning
1Spanishxpor
2EnglishXAn unknown quantity or unknown value; A variable...
3EnglishChristA figure or other artistic depiction of Jesus...
4Middle EnglishCrist(Jesus) Christ
5Old EnglishCrīstChrist
6LatinChrīstus
7Ancient GreekΧριστόςanointed; messiah; annointed, the annointed one,...
8Ancient Greekχρίωto rub or smear (especially the body) with oil or unguents; to anoint
9Proto-Indo-Europeangʰrēy-to smear; to paint, streak, smear
10Proto-Indo-Europeangʰer-to rub; to stroke; to grind
Every word from Proto-Indo-European gʰer-Every word from Proto-Indo-European gʰrēy-Every word from Ancient Greek χρίω
X — Etymology, Origin & Word History | Etymology Explorer