tacho-

1. a combining form meaning “speed,” used in the formation of compound words:

   tachometer.

tacho-

combining_form

1. speed

   tachometer

   tachograph

Word History and Origins

Origin of tacho-¹

Combining form representing Greek táchos; akin to tachýs swift

Word History and Origins

Origin of tacho-¹

from Greek takhos

Example Sentences

Long the left-leaning fulcrum of the country, León, the country’s second largest city with about 210,000 people, was among the first to rebel against Anastasio “Tachito” Somoza DeBayle whose father, Anastasio “Tacho” Somoza, had been gunned down here in 1956 by Rigoberto López Pérez.

From New York Times

It has inspired a trans-border clutch of gifted artists like Tacho Utrera Laudería from Consolapan, Veracruz, revered for his elegant ebony and cedar requintos.

From New York Times

Cordova's father, Anastacio "Tacho" Cordova, suffered multiple forms of cancer.

From US News

Cordova’s father, Anastacio “Tacho” Cordova, later suffered from multiple forms of cancer.

From Washington Times

Cordova’s father, Anastacio “Tacho” Cordova, was a 3-year-old Tularosa resident at the time of the blast and later suffered from multiple forms of cancer.

From Washington Times

Words That Use tacho-

What does tacho- mean?

Tacho- is a combining form used like a prefix meaning “speed.” It is especially used in scientific terms.

Tacho- comes from the Greek táchos, meaning “speed.”

Related to tacho- is tacheo-, as in tacheometry, and tachy-, as in tachygraph.

Want to know more? Read our articles Words That Use tacheo- and Words That Use tachy-.

Examples of tacho-

An example of a scientific term that features the combining form tacho- is tachometer, a term for a variety of instruments that measure velocity or speed, such as how fast an engine goes.

The word tachometer is made of two combining forms. The first is tacho- which, as we know, means “speed.” The second is -meter which means “measure.” Tachometer translates literally to “speed-measurer.”

What are some words that use the combining form tacho-?

• tachogram
• tachograph
• tachometry

What are some other forms that tacho- may be commonly confused with?

• techno-

And of course, tacho- has nothing to do with tacos or nachos, speedily as we may love to eat them.

Break it down!

The combining form -gram means “something written; drawing.” What, in general, is a tachogram a record of?