myEtymology.com: English etymology of lactase

Etymology of the English word lactase

the English word lactase

using the English prefix lacto-

derived from the Latin prefix lact- (milk)

derived from the Latin word lactus

using the English suffix -ase

derived from the English word diastase

derived from the French word diastase

derived from the Greek word diastasis, διάστασις

derived from the Greek word diistemi, διΐστημι (to stand apart; to remove, intervene)

derived from the Greek word diistanai

derived from the Greek word histanai

derived from the Proto-Indo-European root *stā-

derived from the Greek word stasis, στάσις (a standing (properly, the act); (by analogy) position (existence); by implication, a popular uprising; figuratively, controversy)

derived from the Greek word histanai

derived from the Proto-Indo-European root *stā-

derived from the English word lactose

using the English suffix -ose

using the English prefix lact-

Date

The earliest known usage of lactase in English dates from the 20th century.

Usage

Word found in Modern English