Where does “perfectioniste” come from?

perfectioniste (Dutch) comes from English perfectionist, from English perfection, from Old French perfection, from Latin perfectio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere — small stone, pebble; gravel, rubble.

Ancestry of “perfectioniste”, step by step

StepLanguageWordMeaning
1EnglishperfectionistSomeone who is unwilling to settle for anything...
2EnglishperfectionThe quality or state of being perfect or...
3Old Frenchperfection
4Latinperfectiofinishing, completion; perfection
5Latin-tiōtion, -ation, -ing
6Latindissertātiō(spoken) dissertation, discourse, disquisition
7Latindissertusarranged, disposed; explained
8Latindissereresecond-person singular future passive indicative...
9Latindis-asunder, apart, in two; reversal, removal;...
10Latincalceusshoe
11Latincalxlimestone; chalk; the finish line
12Ancient Greekχάλιξsmall stone, pebble; gravel, rubble
Every word from Ancient Greek χάλιξEvery word from Latin -tiōEvery word from Latin dis-