Where does “antiquitist” come from?

antiquitist (English) comes from English antiquity, from Middle English antiquyte, from Old French antiquité, from Latin antiquitas, from Latin antīquus, from Latin ante, from Ancient Greek κλίσις, from Ancient Greek -σῐς — Derives abstract/action nouns from verb roots.

Ancestry of “antiquitist”, step by step

antiquitist traces back through two separate lines of ancestry.

via English antiquity

StepLanguageWordMeaning
1EnglishantiquityAncient times; faraway history; former ages; The...
2Middle EnglishantiquyteAntiquity; former ages or times; The length of...
3Old Frenchantiquité
4Latinantiquitasantiquity; the good old days; the ancients
5Latinantīquusold, ancient
6Latinantebefore, in front, forwards; before; before,...
7Ancient Greekκλίσιςbending, inclination; a lying down; a place for...
8Ancient Greek-σῐς"suffix forming nouns"
9Ancient Greek-τιςretained after dentals
10Proto-Indo-European-tisDerives abstract/action nouns from verb roots

via English ist

StepLanguageWordMeaning
1EnglishistA practitioner or supporter of an ism
2English-istAdded to words to form nouns denoting
3Old French-iste
4Latin-ista-ist; one who practises or believes
5Ancient Greek-ιστήςAlternative form of -τής; -ist
6Ancient Greek-τήςAppended to verbs to form agent nouns
7Proto-Hellenic-tās
Every word from Proto-Indo-European -tisEvery word from Ancient Greek -σῐςEvery word from Ancient Greek κλίσις
antiquitist — Etymology, Origin & Word History | Etymology Explorer