IST Definition

ist, əst
abbreviation
Insulin shock therapy.
American Heritage Medicine
suffix
One that performs a specified action.
Lobbyist.
American Heritage
One that produces, makes, operates, plays, or is connected with a specified thing.
Novelist.
American Heritage
A specialist in a specified art, science, or skill.
Biologist.
American Heritage
An adherent or advocate of a specified doctrine, theory, or school of thought.
Anarchist.
American Heritage
One that is characterized by a specified trait or quality.
Romanticist.
American Heritage
affix

A person who does, makes, or practices (the thing specified): many words so formed correspond to verbs ending in -ize or nouns ending in -ism.

Moralist, satirist.
Webster's New World
A person skilled in or occupied with; an expert in.
Druggist, violinist.
Webster's New World
An adherent of or believer in.
Anarchist.
Webster's New World
A person having or displaying prejudice related to.
Ageist.
Webster's New World

Forming adjectives corresponding to nouns ending in -ism or -ist.

Darwinist, escapist, ageist.
Webster's New World

Origin of IST

  • Middle English -iste from Old French from Latin -istēs, -ista from Greek -istēs agent n. suff

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Old French -iste and Latin -ista, from Ancient Greek -ιστής (istēs).

    From Wiktionary

  • ME -iste < OFr < L -ista < Gr -istēs < verbs ending in -izein

    From Webster's New World College Dictionary, 5th Edition

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