zepto-

Etymology
Greek (h)epta- (seven), for the seventh order of 10−3. The final o conforms to the finals vowel of the SI series from micro- downwards; the letter z was added, as a start in a series of terms running backwards through the alphabet.

Prefix

 * 1) In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10−21 (short scale sextillionth or long scale trilliardth). Symbol: z

Translations

 * Bulgarian: зепто-
 * Chinese:
 * Mandarin: 仄普托
 * Dutch:
 * Finnish:
 * Galician:
 * Icelandic: septó-
 * Indonesian: zepto-
 * Japanese: ゼプト-
 * Malay: zepto-
 * Persian: زپتو
 * Russian:
 * Spanish: zepto-
 * Ukrainian: зепто-

Etymology
From, for the seventh order of 10−3. The final o conforms to the finals vowel of the SI series from micro- downwards; the letter z was added, as a start in a series of terms running backwards through the alphabet.