English

experimentist

From experiment + -ist.

Formed from experiment + -ist

Proto-Indo-European *per- ‘to go through’

…

Latin experior ‘to try, experience’

Latin experimentum ‘experience, test’

Old French esperiment ‘experience’

Middle English experiment

Today it means

noun An experimenter, or leader of an experiment.

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

Etymograph / experimentist