English

affirmativism

From affirmative + -ism.

Formed from affirmative + -ism

Proto-Indo-European *dʰer- ‘to support’

…

Latin affirmō ‘to assert’

Latin affirmativus ‘affirming, affirmative’

Old French affirmatif

Middle English affirmative

Today it means

noun An attitude of affirming something without necessarily providing the proof or the theoretical backing.

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

Etymograph / affirmativism