Etymograph

English

suppressionism

From suppression + -ism.

Formed from suppression + -ism

Latin premō ‘to press, push, press close or hard, oppress,…’

Latin supprimō ‘to press down or under, suppress’

Latin suppressiō ‘pressing down’

English suppression

Today it means

noun A policy of suppressing something.

Language periods are conventional ranges, not dates for this word.

Etymograph / suppressionism