Where does “quaternionist” come from?

quaternionist (English) comes from English quaternion, from Middle English quaternioun, from Latin quaterniō, from Latin quaternī, from Latin quaternus, from Latin quater, from Latin quattŭor, from Portuguese quarto — and.

quaternionist (English): One who studies or promotes the use of...

Definitions

  1. One who studies or promotes the use of...

Ancestry of “quaternionist”, step by step

quaternionist traces back through two separate lines of ancestry.

via English quaternion

StepLanguageWordMeaning
1EnglishquaternionA group or set of four people or things; A word...
2Middle EnglishquaterniounAn ancient Roman leader of a squad of four soldiers
3LatinquaterniōThe number four (e.g. on a dice)
4Latinquaternī
5Latinquaternusfour each; four at a time
6Latinquaterfour times
7Latinquattŭorfour; 4
8Portuguesequartoordinal form of quatro; fourth; quarter; fourth;...
9Old Portuguesequartoquarter
10Latinquārtusfourth
11Proto-Indo-Europeankʷeturtos
12Proto-Indo-Europeankʷetwóresfour
13Proto-Indo-Europeankʷe-and

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 kʷe-Every word from Proto-Indo-European kʷetwóresEvery word from Proto-Indo-European kʷeturtos