What is the Origin of the Word Microfiche?

The origin of the word micro- is from the Greek mikros, meaning "small"

"Film" is from Old English, meaning "membrane, skin, " In West Germanic; "skin, " In was extended in Old English to "hide" as in "animal hide." The sense of "a thin coat of something" is 1577, extended by 1845 to the coating of chemical gel on photographic plates. By 1895 this also meant the coating plus the paper or celluloid. First used of "motion pictures" in 1905. The verb "to make a movie of" is from 1899.

Microfilm as a noun is from 1927, coined from micro- + film. The verb is first recorded 1940.

Fiche: 1949, from Fr. fiche "slip of paper, form, " from Old French fiche "point, " from ficher "to fix, fasten" Sense of "card, strip of film" is a shortening of microfiche (1950).

Microfiche = 1950, from micro- + fiche "slip of paper."

Source: www.etymonline.com