Etymology

yotta-

Today it means: In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10²⁴ (a short scale septillion or long scale quadrillion). Symbol: Y Full definition →

Ancient Greek ὀκτώ
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The story

  1. Ancient Greek · derived fromὀκτώ“eight”
  2. English todayyotta-

From Ancient Greek ὀκτώ (oktṓ, “eight”), for the eighth order of 10³. The consonants ct are reduced to tt; the final a conforms to the finals vowel of the SI series from mega- upwards; the letter y was added, as the second term in a series running through the alphabet backwards (from zetta-).

Words from the same roots

Ancient Greekὀκτώ all →

octapodyocto-octodontidyocto-

Etymology from Wiktionary, CC BY-SA 4.0.