abscissa (n.)youdaoicibaDictYouDict[abscissa 词源字典]
1690s, from Latin abscissa (linea) "(a line) cut off," from fem. past participle of abscindere "to cut off," from ab- "off, away" (see ab-) + scindere "to cut" (see shed (v.)).[abscissa etymology, abscissa origin, 英语词源]