tacho-

prefix

speed, velocity

Meanings

Origin

  1. Ancient Greekτάχος
  2. Englishtacho-

Borrowed from Ancient Greek τάχος (tákhos, “speed”). Compare tachy-, from the same root.

Full word history & related roots →
Cite this entry
APA

tacho-. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/tacho-

MLA

“tacho-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/tacho-. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “tacho-,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/tacho-.

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