millimicro-

prefix

nano- (in the names of SI units)

OriginEnglish micro- ← French milli- ← Latin mīlle →
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Meanings

prefix
  1. obsoletenano- (in the names of SI units)

Origin

  1. Proto-Indo-European*sem-
  2. Proto-Indo-European*sm̥-
  3. Proto-Indo-European*smih₂
  4. Proto-Indo-European*ǵʰes-
  5. Proto-Indo-European*ǵʰéslom
  6. Proto-Indo-European*ǵʰéslih₂
  7. Proto-Indo-European*smih₂ǵʰéslih₂
  8. Proto-Italic*smīɣeslī
  9. Latinmīlle
  10. Frenchmilli-
  11. Englishmilli-
  12. Englishmicro-
  13. Englishmillimicro-

From milli- + micro-.

Full word history & related roots →
Cite this entry
APA

millimicro-. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/millimicro-

MLA

“millimicro-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/millimicro-. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “millimicro-,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/millimicro-.

Source: millimicro- on Wiktionary, CC BY-SA 4.0.